251212132 has 12 divisors (see below), whose sum is σ = 440527360. Its totient is φ = 125347176.

The previous prime is 251212121. The next prime is 251212153. The reversal of 251212132 is 231212152.

251212132 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62532 + ... + 66427.

Almost surely, 2^251212132 is an apocalyptic number.

It is an amenable number.

251212132 is a deficient number, since it is larger than the sum of its proper divisors (189315228).

251212132 is a wasteful number, since it uses less digits than its factorization.

251212132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129450 (or 129448 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The square root of 251212132 is about 15849.6729303794. The cubic root of 251212132 is about 630.9770109743.

Adding to 251212132 its reverse (231212152), we get a palindrome (482424284).

The spelling of 251212132 in words is "two hundred fifty-one million, two hundred twelve thousand, one hundred thirty-two".