125212456 has 16 divisors (see below), whose sum is σ = 235690740. Its totient is φ = 62361600.

The previous prime is 125212453. The next prime is 125212511. The reversal of 125212456 is 654212521.

It can be written as a sum of positive squares in 2 ways, for example, as 124768900 + 443556 = 11170^2 + 666^2 .

It is not an unprimeable number, because it can be changed into a prime (125212453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28395 + ... + 32506.

Almost surely, 2^125212456 is an apocalyptic number.

It is an amenable number.

125212456 is a deficient number, since it is larger than the sum of its proper divisors (110478284).

125212456 is a wasteful number, since it uses less digits than its factorization.

125212456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61164 (or 61160 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 125212456 is about 11189.8371748654. The cubic root of 125212456 is about 500.2831143290.

Adding to 125212456 its reverse (654212521), we get a palindrome (779424977).

The spelling of 125212456 in words is "one hundred twenty-five million, two hundred twelve thousand, four hundred fifty-six".