125305015 has 16 divisors (see below), whose sum is σ = 164555136. Its totient is φ = 90842400.

The previous prime is 125305009. The next prime is 125305021. The reversal of 125305015 is 510503521.

It is an interprime number because it is at equal distance from previous prime (125305009) and next prime (125305021).

It is a de Polignac number, because none of the positive numbers 2^k-125305015 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14764 + ... + 21646.

It is an arithmetic number, because the mean of its divisors is an integer number (10284696).

Almost surely, 2^125305015 is an apocalyptic number.

125305015 is a deficient number, since it is larger than the sum of its proper divisors (39250121).

125305015 is a wasteful number, since it uses less digits than its factorization.

125305015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7230.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 125305015 is about 11193.9722618917. The cubic root of 125305015 is about 500.4063563263.

Adding to 125305015 its reverse (510503521), we get a palindrome (635808536).

The spelling of 125305015 in words is "one hundred twenty-five million, three hundred five thousand, fifteen".