1053214644 has 12 divisors (see below), whose sum is σ = 2457500864. Its totient is φ = 351071544.

The previous prime is 1053214627. The next prime is 1053214661. The reversal of 1053214644 is 4464123501.

It is an interprime number because it is at equal distance from previous prime (1053214627) and next prime (1053214661).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1053214644² = 2218522172672093472, which contains 22 as substring.

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, 43883932 + ... + 43883955.

Almost surely, 2^1053214644 is an apocalyptic number.

It is an amenable number.

1053214644 is an abundant number, since it is smaller than the sum of its proper divisors (1404286220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1053214644 is a wasteful number, since it uses less digits than its factorization.

1053214644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87767894 (or 87767892 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1053214644 is about 32453.2686181223. The cubic root of 1053214644 is about 1017.4325548165.

The spelling of 1053214644 in words is "one billion, fifty-three million, two hundred fourteen thousand, six hundred forty-four".