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132512725 = 5237143257
BaseRepresentation
bin1111110010111…
…11101111010101
3100020100100021201
413321133233111
5232410401400
621052112501
73166224322
oct771375725
9306310251
10132512725
1168888854
1238465731
13215b83c7
1413855b49
15b97806a
hex7e5fbd5

132512725 has 12 divisors (see below), whose sum is σ = 168757924. Its totient is φ = 103144320.

The previous prime is 132512719. The next prime is 132512741. The reversal of 132512725 is 527215231.

It can be written as a sum of positive squares in 6 ways, for example, as 9790641 + 122722084 = 3129^2 + 11078^2 .

It is a de Polignac number, because none of the positive numbers 2k-132512725 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 132512693 and 132512702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70704 + ... + 72553.

Almost surely, 2132512725 is an apocalyptic number.

It is an amenable number.

132512725 is a deficient number, since it is larger than the sum of its proper divisors (36245199).

132512725 is a wasteful number, since it uses less digits than its factorization.

132512725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143304 (or 143299 counting only the distinct ones).

The product of its digits is 4200, while the sum is 28.

The square root of 132512725 is about 11511.4171586299. The cubic root of 132512725 is about 509.8227309065.

Adding to 132512725 its reverse (527215231), we get a palindrome (659727956).

The spelling of 132512725 in words is "one hundred thirty-two million, five hundred twelve thousand, seven hundred twenty-five".

Divisors: 1 5 25 37 185 925 143257 716285 3581425 5300509 26502545 132512725