125911542 has 16 divisors (see below), whose sum is σ = 255370752. Its totient is φ = 41379240.

The previous prime is 125911523. The next prime is 125911561. The reversal of 125911542 is 245119521.

It is an interprime number because it is at equal distance from previous prime (125911523) and next prime (125911561).

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 7 ways as a sum of consecutive naturals, for example, 147358 + ... + 148209.

It is an arithmetic number, because the mean of its divisors is an integer number (15960672).

Almost surely, 2^125911542 is an apocalyptic number.

125911542 is an abundant number, since it is smaller than the sum of its proper divisors (129459210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125911542 is a wasteful number, since it uses less digits than its factorization.

125911542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295643.

The product of its digits is 3600, while the sum is 30.

The square root of 125911542 is about 11221.0312360317. The cubic root of 125911542 is about 501.2124469019.

The spelling of 125911542 in words is "one hundred twenty-five million, nine hundred eleven thousand, five hundred forty-two".