125513542 has 24 divisors (see below), whose sum is σ = 236508048. Its totient is φ = 48900720.

The previous prime is 125513503. The next prime is 125513551. The reversal of 125513542 is 245315521.

It is a self number, because there is not a number n which added to its sum of digits gives 125513542.

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 11 ways as a sum of consecutive naturals, for example, 35353 + ... + 38740.

It is an arithmetic number, because the mean of its divisors is an integer number (9854502).

Almost surely, 2^125513542 is an apocalyptic number.

125513542 is a deficient number, since it is larger than the sum of its proper divisors (110994506).

125513542 is a wasteful number, since it uses less digits than its factorization.

125513542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74124 (or 74113 counting only the distinct ones).

The product of its digits is 6000, while the sum is 28.

The square root of 125513542 is about 11203.2826439397. The cubic root of 125513542 is about 500.6837871108.

The spelling of 125513542 in words is "one hundred twenty-five million, five hundred thirteen thousand, five hundred forty-two".