125162539 has 4 divisors (see below), whose sum is σ = 125282680. Its totient is φ = 125042400.

The previous prime is 125162537. The next prime is 125162549. The reversal of 125162539 is 935261521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 935261521 = 20693 ⋅45197.

It is a cyclic number.

It is not a de Polignac number, because 125162539 - 2¹ = 125162537 is a prime.

It is a super-2 number, since 2×125162539² = 31331322337853042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125162537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58494 + ... + 60595.

It is an arithmetic number, because the mean of its divisors is an integer number (31320670).

Almost surely, 2^125162539 is an apocalyptic number.

125162539 is a deficient number, since it is larger than the sum of its proper divisors (120141).

125162539 is a wasteful number, since it uses less digits than its factorization.

125162539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120140.

The product of its digits is 16200, while the sum is 34.

The square root of 125162539 is about 11187.6064911133. The cubic root of 125162539 is about 500.2166248005.

The spelling of 125162539 in words is "one hundred twenty-five million, one hundred sixty-two thousand, five hundred thirty-nine".