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125253131 is a prime number
BaseRepresentation
bin1110111011100…
…11011000001011
322201200111222212
413131303120023
5224031100011
620232335335
73050430323
oct735633013
9281614885
10125253131
116477a593
1235b4454b
131cc45ca3
14128c6283
15aee208b
hex777360b

125253131 has 2 divisors, whose sum is σ = 125253132. Its totient is φ = 125253130.

The previous prime is 125253091. The next prime is 125253169. The reversal of 125253131 is 131352521.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125253131 - 26 = 125253067 is a prime.

It is a super-2 number, since 2×1252531312 = 31376693650606322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 125253097 and 125253106.

It is not a weakly prime, because it can be changed into another prime (125253031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62626565 + 62626566.

It is an arithmetic number, because the mean of its divisors is an integer number (62626566).

Almost surely, 2125253131 is an apocalyptic number.

125253131 is a deficient number, since it is larger than the sum of its proper divisors (1).

125253131 is an equidigital number, since it uses as much as digits as its factorization.

125253131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 900, while the sum is 23.

The square root of 125253131 is about 11191.6545246894. The cubic root of 125253131 is about 500.3372804327.

The spelling of 125253131 in words is "one hundred twenty-five million, two hundred fifty-three thousand, one hundred thirty-one".