125020542 has 16 divisors (see below), whose sum is σ = 251540352. Its totient is φ = 41423640.

The previous prime is 125020541. The next prime is 125020543. The reversal of 125020542 is 245020521.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (125020541) and next prime (125020543).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125020541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61384 + ... + 63387.

It is an arithmetic number, because the mean of its divisors is an integer number (15721272).

Almost surely, 2^125020542 is an apocalyptic number.

125020542 is an abundant number, since it is smaller than the sum of its proper divisors (126519810).

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

125020542 is a wasteful number, since it uses less digits than its factorization.

125020542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124943.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 125020542 is about 11181.2585159274. The cubic root of 125020542 is about 500.0273878331.

Subtracting from 125020542 its sum of digits (21), we obtain a palindrome (125020521).

The spelling of 125020542 in words is "one hundred twenty-five million, twenty thousand, five hundred forty-two".