125653015 has 4 divisors (see below), whose sum is σ = 150783624. Its totient is φ = 100522408.

The previous prime is 125652977. The next prime is 125653039. The reversal of 125653015 is 510356521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 510356521 = 3769 ⋅135409.

It is a cyclic number.

It is not a de Polignac number, because 125653015 - 2¹⁹ = 125128727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12565297 + ... + 12565306.

It is an arithmetic number, because the mean of its divisors is an integer number (37695906).

Almost surely, 2^125653015 is an apocalyptic number.

125653015 is a deficient number, since it is larger than the sum of its proper divisors (25130609).

125653015 is an equidigital number, since it uses as much as digits as its factorization.

125653015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25130608.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 125653015 is about 11209.5055644752. The cubic root of 125653015 is about 500.8691748613.

The spelling of 125653015 in words is "one hundred twenty-five million, six hundred fifty-three thousand, fifteen".