1657143152 has 30 divisors (see below), whose sum is σ = 3734914968. Its totient is φ = 710203872.

The previous prime is 1657143151. The next prime is 1657143181. The reversal of 1657143152 is 2513417561.

It is a happy number.

It is a super-2 number, since 2×1657143152² = 5492246852440990208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1657143151) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1056068 + ... + 1057635.

Almost surely, 2^1657143152 is an apocalyptic number.

It is an amenable number.

1657143152 is an abundant number, since it is smaller than the sum of its proper divisors (2077771816).

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

1657143152 is a wasteful number, since it uses less digits than its factorization.

1657143152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2113725 (or 2113712 counting only the distinct ones).

The product of its digits is 25200, while the sum is 35.

The square root of 1657143152 is about 40708.0231895384. The cubic root of 1657143152 is about 1183.3685114099.

The spelling of 1657143152 in words is "one billion, six hundred fifty-seven million, one hundred forty-three thousand, one hundred fifty-two".