1257125224 has 8 divisors (see below), whose sum is σ = 2357109810. Its totient is φ = 628562608.

The previous prime is 1257125201. The next prime is 1257125251. The reversal of 1257125224 is 4225217521.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1113556900 + 143568324 = 33370^2 + 11982^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78570319 + ... + 78570334.

Almost surely, 2^1257125224 is an apocalyptic number.

It is an amenable number.

1257125224 is a deficient number, since it is larger than the sum of its proper divisors (1099984586).

1257125224 is a wasteful number, since it uses less digits than its factorization.

1257125224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157140659 (or 157140655 counting only the distinct ones).

The product of its digits is 11200, while the sum is 31.

The square root of 1257125224 is about 35455.9617553945. The cubic root of 1257125224 is about 1079.2602455871.

The spelling of 1257125224 in words is "one billion, two hundred fifty-seven million, one hundred twenty-five thousand, two hundred twenty-four".