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125152131 = 3132341283
BaseRepresentation
bin1110111010110…
…10101110000011
322201111101110010
413131122232003
5224014332011
620230240003
73046530006
oct735325603
9281441403
10125152131
1164710715
1235ab6003
131cc0c020
141289b53d
15aec21a6
hex775ab83

125152131 has 48 divisors (see below), whose sum is σ = 194519808. Its totient is φ = 71005440.

The previous prime is 125152129. The next prime is 125152151. The reversal of 125152131 is 131251521.

It is not a de Polignac number, because 125152131 - 21 = 125152129 is a prime.

It is a super-2 number, since 2×1251521312 = 31326111787682322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 125152098 and 125152107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125152121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1507816 + ... + 1507898.

It is an arithmetic number, because the mean of its divisors is an integer number (4052496).

Almost surely, 2125152131 is an apocalyptic number.

125152131 is a deficient number, since it is larger than the sum of its proper divisors (69367677).

125152131 is a wasteful number, since it uses less digits than its factorization.

125152131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 163 counting only the distinct ones).

The product of its digits is 300, while the sum is 21.

The square root of 125152131 is about 11187.1413238593. The cubic root of 125152131 is about 500.2027590997.

The spelling of 125152131 in words is "one hundred twenty-five million, one hundred fifty-two thousand, one hundred thirty-one".

Divisors: 1 3 13 23 39 41 69 83 123 249 299 533 897 943 1079 1599 1681 1909 2829 3237 3403 5043 5727 10209 12259 21853 24817 36777 38663 44239 65559 74451 78269 115989 132717 139523 234807 418569 502619 1017497 1507857 1813799 3052491 3209029 5441397 9627087 41717377 125152131