125211772 has 24 divisors (see below), whose sum is σ = 254532320. Its totient is φ = 52781760.

The previous prime is 125211733. The next prime is 125211773. The reversal of 125211772 is 277112521.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 125211772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125211773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34947 + ... + 38362.

Almost surely, 2^125211772 is an apocalyptic number.

It is an amenable number.

125211772 is an abundant number, since it is smaller than the sum of its proper divisors (129320548).

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

125211772 is a wasteful number, since it uses less digits than its factorization.

125211772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73381 (or 73379 counting only the distinct ones).

The product of its digits is 1960, while the sum is 28.

The square root of 125211772 is about 11189.8066113763. The cubic root of 125211772 is about 500.2822033592.

The spelling of 125211772 in words is "one hundred twenty-five million, two hundred eleven thousand, seven hundred seventy-two".