125212712 has 16 divisors (see below), whose sum is σ = 239204340. Its totient is φ = 61424896.

The previous prime is 125212697. The next prime is 125212727. The reversal of 125212712 is 217212521.

It is an interprime number because it is at equal distance from previous prime (125212697) and next prime (125212727).

It can be written as a sum of positive squares in 2 ways, for example, as 122633476 + 2579236 = 11074^2 + 1606^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147233 + ... + 148080.

Almost surely, 2^125212712 is an apocalyptic number.

It is an amenable number.

125212712 is a deficient number, since it is larger than the sum of its proper divisors (113991628).

125212712 is a wasteful number, since it uses less digits than its factorization.

125212712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295372 (or 295368 counting only the distinct ones).

The product of its digits is 560, while the sum is 23.

The square root of 125212712 is about 11189.8486138106. The cubic root of 125212712 is about 500.2834552758.

The spelling of 125212712 in words is "one hundred twenty-five million, two hundred twelve thousand, seven hundred twelve".