125615542 has 8 divisors (see below), whose sum is σ = 202917456. Its totient is φ = 57976392.

The previous prime is 125615519. The next prime is 125615549. The reversal of 125615542 is 245516521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125615549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2415658 + ... + 2415709.

It is an arithmetic number, because the mean of its divisors is an integer number (25364682).

Almost surely, 2^125615542 is an apocalyptic number.

125615542 is a deficient number, since it is larger than the sum of its proper divisors (77301914).

125615542 is a wasteful number, since it uses less digits than its factorization.

125615542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4831382.

The product of its digits is 12000, while the sum is 31.

The square root of 125615542 is about 11207.8339566573. The cubic root of 125615542 is about 500.8193791687.

The spelling of 125615542 in words is "one hundred twenty-five million, six hundred fifteen thousand, five hundred forty-two".