1217057152 has 32 divisors (see below), whose sum is σ = 2508220800. Its totient is φ = 587543040.

The previous prime is 1217057147. The next prime is 1217057197. The reversal of 1217057152 is 2517507121.

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

It is a super-2 number, since 2×1217057152² = 2962456222468702208, 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, 160224 + ... + 167647.

It is an arithmetic number, because the mean of its divisors is an integer number (78381900).

Almost surely, 2^1217057152 is an apocalyptic number.

It is an amenable number.

1217057152 is an abundant number, since it is smaller than the sum of its proper divisors (1291163648).

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

1217057152 is an equidigital number, since it uses as much as digits as its factorization.

1217057152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327914 (or 327902 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 31.

The square root of 1217057152 is about 34886.3462116628. The cubic root of 1217057152 is about 1067.6698797810.

The spelling of 1217057152 in words is "one billion, two hundred seventeen million, fifty-seven thousand, one hundred fifty-two".