125261242 has 4 divisors (see below), whose sum is σ = 187891866. Its totient is φ = 62630620.

The previous prime is 125261209. The next prime is 125261249. The reversal of 125261242 is 242162521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 117527281 + 7733961 = 10841^2 + 2781^2 .

It is not an unprimeable number, because it can be changed into a prime (125261249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31315309 + ... + 31315312.

Almost surely, 2^125261242 is an apocalyptic number.

125261242 is a deficient number, since it is larger than the sum of its proper divisors (62630624).

125261242 is an equidigital number, since it uses as much as digits as its factorization.

125261242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62630623.

The product of its digits is 1920, while the sum is 25.

The square root of 125261242 is about 11192.0168870494. The cubic root of 125261242 is about 500.3480802907.

The spelling of 125261242 in words is "one hundred twenty-five million, two hundred sixty-one thousand, two hundred forty-two".