125165415 has 32 divisors (see below), whose sum is σ = 206180352. Its totient is φ = 64800000.

The previous prime is 125165399. The next prime is 125165419. The reversal of 125165415 is 514561521.

It is not a de Polignac number, because 125165415 - 2⁴ = 125165399 is a prime.

It is a super-2 number, since 2×125165415² = 31332762224244450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125165419) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166290 + ... + 167040.

It is an arithmetic number, because the mean of its divisors is an integer number (6443136).

Almost surely, 2^125165415 is an apocalyptic number.

125165415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125165415 is a deficient number, since it is larger than the sum of its proper divisors (81014937).

125165415 is a wasteful number, since it uses less digits than its factorization.

125165415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071.

The product of its digits is 6000, while the sum is 30.

The square root of 125165415 is about 11187.7350254643. The cubic root of 125165415 is about 500.2204561172.

It can be divided in two parts, 1251 and 65415, that added together give a palindrome (66666).

The spelling of 125165415 in words is "one hundred twenty-five million, one hundred sixty-five thousand, four hundred fifteen".