1253031664 has 20 divisors (see below), whose sum is σ = 2431974304. Its totient is φ = 625425408.

The previous prime is 1253031617. The next prime is 1253031667. The reversal of 1253031664 is 4661303521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253031667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58632 + ... + 77095.

Almost surely, 2^1253031664 is an apocalyptic number.

It is an amenable number.

1253031664 is a deficient number, since it is larger than the sum of its proper divisors (1178942640).

1253031664 is a wasteful number, since it uses less digits than its factorization.

1253031664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136312 (or 136306 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 1253031664 is about 35398.1872982219. The cubic root of 1253031664 is about 1078.0875115260.

The spelling of 1253031664 in words is "one billion, two hundred fifty-three million, thirty-one thousand, six hundred sixty-four".