2018612131 has 4 divisors (see below), whose sum is σ = 2018772952. Its totient is φ = 2018451312.

The previous prime is 2018612119. The next prime is 2018612171. The reversal of 2018612131 is 1312168102.

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 2018612131 - 2²¹ = 2016514979 is a prime.

It is a super-2 number, since 2×2018612131² = 8149589870840722322, 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 = 2018612096 and 2018612105.

It is not an unprimeable number, because it can be changed into a prime (2018612171) 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, 59826 + ... + 87271.

It is an arithmetic number, because the mean of its divisors is an integer number (504693238).

Almost surely, 2^2018612131 is an apocalyptic number.

2018612131 is a deficient number, since it is larger than the sum of its proper divisors (160821).

2018612131 is a wasteful number, since it uses less digits than its factorization.

2018612131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160820.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 2018612131 is about 44928.9676155596. The cubic root of 2018612131 is about 1263.8172911533.

The spelling of 2018612131 in words is "two billion, eighteen million, six hundred twelve thousand, one hundred thirty-one".