1212667264 has 32 divisors (see below), whose sum is σ = 2417430600. Its totient is φ = 605939712.

The previous prime is 1212667243. The next prime is 1212667271. The reversal of 1212667264 is 4627662121.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

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, 391032 + ... + 394120.

Almost surely, 2^1212667264 is an apocalyptic number.

It is an amenable number.

1212667264 is a deficient number, since it is larger than the sum of its proper divisors (1204763336).

1212667264 is an equidigital number, since it uses as much as digits as its factorization.

1212667264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6170 (or 6158 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 1212667264 is about 34823.3723812040. The cubic root of 1212667264 is about 1066.3846490546.

The spelling of 1212667264 in words is "one billion, two hundred twelve million, six hundred sixty-seven thousand, two hundred sixty-four".