125420012 has 36 divisors (see below), whose sum is σ = 237344016. Its totient is φ = 57879360.

The previous prime is 125420011. The next prime is 125420051. The reversal of 125420012 is 210024521.

It is not an unprimeable number, because it can be changed into a prime (125420011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76562 + ... + 78182.

Almost surely, 2^125420012 is an apocalyptic number.

It is an amenable number.

125420012 is a deficient number, since it is larger than the sum of its proper divisors (111924004).

125420012 is a wasteful number, since it uses less digits than its factorization.

125420012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1706 (or 1675 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 125420012 is about 11199.1076430223. The cubic root of 125420012 is about 500.5593899324.

Adding to 125420012 its reverse (210024521), we get a palindrome (335444533).

The spelling of 125420012 in words is "one hundred twenty-five million, four hundred twenty thousand, twelve".