1142977152 has 64 divisors (see below), whose sum is σ = 3106683360. Its totient is φ = 372126720.

The previous prime is 1142977151. The next prime is 1142977153. The reversal of 1142977152 is 2517792411.

It is an interprime number because it is at equal distance from previous prime (1142977151) and next prime (1142977153).

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×1142977152² = 2612793539988062208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1142977152.

It is not an unprimeable number, because it can be changed into a prime (1142977151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18099 + ... + 51122.

Almost surely, 2^1142977152 is an apocalyptic number.

1142977152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1142977152 is an abundant number, since it is smaller than the sum of its proper divisors (1963706208).

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

1142977152 is an equidigital number, since it uses as much as digits as its factorization.

1142977152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69281 (or 69269 counting only the distinct ones).

The product of its digits is 35280, while the sum is 39.

The square root of 1142977152 is about 33807.9451017065. The cubic root of 1142977152 is about 1045.5525117137.

The spelling of 1142977152 in words is "one billion, one hundred forty-two million, nine hundred seventy-seven thousand, one hundred fifty-two".