125149765 has 8 divisors (see below), whose sum is σ = 161732088. Its totient is φ = 92418240.

The previous prime is 125149763. The next prime is 125149781. The reversal of 125149765 is 567941521.

It can be written as a sum of positive squares in 4 ways, for example, as 1361889 + 123787876 = 1167^2 + 11126^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125149765 - 2¹ = 125149763 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125149763) 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, 962626 + ... + 962755.

It is an arithmetic number, because the mean of its divisors is an integer number (20216511).

Almost surely, 2^125149765 is an apocalyptic number.

It is an amenable number.

125149765 is a deficient number, since it is larger than the sum of its proper divisors (36582323).

125149765 is a wasteful number, since it uses less digits than its factorization.

125149765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1925399.

The product of its digits is 75600, while the sum is 40.

The square root of 125149765 is about 11187.0355769525. The cubic root of 125149765 is about 500.1996069702.

The spelling of 125149765 in words is "one hundred twenty-five million, one hundred forty-nine thousand, seven hundred sixty-five".