2157142533 has 72 divisors (see below), whose sum is σ = 3741140736. Its totient is φ = 1100736000.

The previous prime is 2157142517. The next prime is 2157142543. The reversal of 2157142533 is 3352417512.

It is not a de Polignac number, because 2157142533 - 2⁴ = 2157142517 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2157142494 and 2157142503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2157142543) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 768733 + ... + 771533.

It is an arithmetic number, because the mean of its divisors is an integer number (51960288).

Almost surely, 2^2157142533 is an apocalyptic number.

It is an amenable number.

2157142533 is a deficient number, since it is larger than the sum of its proper divisors (1583998203).

2157142533 is a wasteful number, since it uses less digits than its factorization.

2157142533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2875 (or 2855 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 2157142533 is about 46445.0485304946. The cubic root of 2157142533 is about 1292.0905415450.

The spelling of 2157142533 in words is "two billion, one hundred fifty-seven million, one hundred forty-two thousand, five hundred thirty-three".