125315442 has 72 divisors (see below), whose sum is σ = 322672896. Its totient is φ = 35031024.

The previous prime is 125315417. The next prime is 125315461. The reversal of 125315442 is 244513521.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 39943 + ... + 42965.

It is an arithmetic number, because the mean of its divisors is an integer number (4481568).

Almost surely, 2^125315442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125315442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161336448).

125315442 is an abundant number, since it is smaller than the sum of its proper divisors (197357454).

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

125315442 is a wasteful number, since it uses less digits than its factorization.

125315442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3092 (or 3082 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 125315442 is about 11194.4379939325. The cubic root of 125315442 is about 500.4202360377.

Adding to 125315442 its reverse (244513521), we get a palindrome (369828963).

The spelling of 125315442 in words is "one hundred twenty-five million, three hundred fifteen thousand, four hundred forty-two".