1018534131 has 6 divisors (see below), whose sum is σ = 1471215980. Its totient is φ = 679022748.

The previous prime is 1018534091. The next prime is 1018534151. The reversal of 1018534131 is 1314358101.

It is not a de Polignac number, because 1018534131 - 2⁷ = 1018534003 is a prime.

It is a super-2 number, since 2×1018534131² = 2074823552023850322, 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 = 1018534095 and 1018534104.

It is not an unprimeable number, because it can be changed into a prime (1018534151) 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, 56585221 + ... + 56585238.

Almost surely, 2^1018534131 is an apocalyptic number.

1018534131 is a deficient number, since it is larger than the sum of its proper divisors (452681849).

1018534131 is a wasteful number, since it uses less digits than its factorization.

1018534131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113170465 (or 113170462 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1018534131 is about 31914.4815248501. The cubic root of 1018534131 is about 1006.1402636604.

The spelling of 1018534131 in words is "one billion, eighteen million, five hundred thirty-four thousand, one hundred thirty-one".