3138131 has 2 divisors, whose sum is σ = 3138132. Its totient is φ = 3138130.

The previous prime is 3138127. The next prime is 3138137. The reversal of 3138131 is 1318313.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1318313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3138131 - 2² = 3138127 is a prime.

It is a super-2 number, since 2×3138131² = 19695732346322, which contains 22 as substring.

It is a Chen prime.

It is equal to p₂₂₆₀₄₆ and since 3138131 and 226046 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (3138137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1569065 + 1569066.

It is an arithmetic number, because the mean of its divisors is an integer number (1569066).

Almost surely, 2^3138131 is an apocalyptic number.

3138131 is a deficient number, since it is larger than the sum of its proper divisors (1).

3138131 is an equidigital number, since it uses as much as digits as its factorization.

3138131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 20.

The square root of 3138131 is about 1771.4770673085. The cubic root of 3138131 is about 146.4053755728.

The spelling of 3138131 in words is "three million, one hundred thirty-eight thousand, one hundred thirty-one".