2257143131 has 4 divisors (see below), whose sum is σ = 2258169912. Its totient is φ = 2256116352.

The previous prime is 2257143127. The next prime is 2257143173. The reversal of 2257143131 is 1313417522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2257143131 - 2² = 2257143127 is a prime.

It is a super-2 number, since 2×2257143131² = 10189390227640966322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2257143094 and 2257143103.

It is not an unprimeable number, because it can be changed into a prime (2257103131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510086 + ... + 514491.

It is an arithmetic number, because the mean of its divisors is an integer number (564542478).

Almost surely, 2^2257143131 is an apocalyptic number.

2257143131 is a deficient number, since it is larger than the sum of its proper divisors (1026781).

2257143131 is a wasteful number, since it uses less digits than its factorization.

2257143131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026780.

The product of its digits is 5040, while the sum is 29.

The square root of 2257143131 is about 47509.4004487533. The cubic root of 2257143131 is about 1311.7559210573.

The spelling of 2257143131 in words is "two billion, two hundred fifty-seven million, one hundred forty-three thousand, one hundred thirty-one".