131625734 has 16 divisors (see below), whose sum is σ = 207174240. Its totient is φ = 62599680.

The previous prime is 131625731. The next prime is 131625737. The reversal of 131625734 is 437526131.

It is an interprime number because it is at equal distance from previous prime (131625731) and next prime (131625737).

It is a self number, because there is not a number n which added to its sum of digits gives 131625734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131625731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422 + ... + 16230.

It is an arithmetic number, because the mean of its divisors is an integer number (12948390).

Almost surely, 2^131625734 is an apocalyptic number.

131625734 is a deficient number, since it is larger than the sum of its proper divisors (75548506).

131625734 is a wasteful number, since it uses less digits than its factorization.

131625734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16015.

The product of its digits is 15120, while the sum is 32.

The square root of 131625734 is about 11472.8258942599. The cubic root of 131625734 is about 508.6826619961.

The spelling of 131625734 in words is "one hundred thirty-one million, six hundred twenty-five thousand, seven hundred thirty-four".