125872242 has 16 divisors (see below), whose sum is σ = 253253952. Its totient is φ = 41705840.

The previous prime is 125872217. The next prime is 125872249. The reversal of 125872242 is 242278521.

It is a super-2 number, since 2×125872242² = 31687642612213128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (125872249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61809 + ... + 63812.

It is an arithmetic number, because the mean of its divisors is an integer number (15828372).

Almost surely, 2^125872242 is an apocalyptic number.

125872242 is an abundant number, since it is smaller than the sum of its proper divisors (127381710).

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

125872242 is a wasteful number, since it uses less digits than its factorization.

125872242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125793.

The product of its digits is 17920, while the sum is 33.

The square root of 125872242 is about 11219.2799234175. The cubic root of 125872242 is about 501.1602946830.

The spelling of 125872242 in words is "one hundred twenty-five million, eight hundred seventy-two thousand, two hundred forty-two".