125320615 has 16 divisors (see below), whose sum is σ = 173541888. Its totient is φ = 85097376.

The previous prime is 125320597. The next prime is 125320627. The reversal of 125320615 is 516023521.

It is not a de Polignac number, because 125320615 - 2¹⁵ = 125287847 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125320615.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13777 + ... + 20986.

It is an arithmetic number, because the mean of its divisors is an integer number (10846368).

Almost surely, 2^125320615 is an apocalyptic number.

125320615 is a deficient number, since it is larger than the sum of its proper divisors (48221273).

125320615 is a wasteful number, since it uses less digits than its factorization.

125320615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34878.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 125320615 is about 11194.6690437904. The cubic root of 125320615 is about 500.4271216969.

The spelling of 125320615 in words is "one hundred twenty-five million, three hundred twenty thousand, six hundred fifteen".