125221042 has 8 divisors (see below), whose sum is σ = 189942300. Its totient is φ = 61906944.

The previous prime is 125221037. The next prime is 125221051. The reversal of 125221042 is 240122521.

It can be written as a sum of positive squares in 2 ways, for example, as 124970041 + 251001 = 11179^2 + 501^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351567 + ... + 351922.

Almost surely, 2^125221042 is an apocalyptic number.

125221042 is a deficient number, since it is larger than the sum of its proper divisors (64721258).

125221042 is an equidigital number, since it uses as much as digits as its factorization.

125221042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703580.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 125221042 is about 11190.2208199838. The cubic root of 125221042 is about 500.2945491142.

Adding to 125221042 its reverse (240122521), we get a palindrome (365343563).

The spelling of 125221042 in words is "one hundred twenty-five million, two hundred twenty-one thousand, forty-two".