131146819 has 2 divisors, whose sum is σ = 131146820. Its totient is φ = 131146818.

The previous prime is 131146739. The next prime is 131146831. The reversal of 131146819 is 918641131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131146819 - 2⁹ = 131146307 is a prime.

It is a super-2 number, since 2×131146819² = 34398976267637522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131146849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65573409 + 65573410.

It is an arithmetic number, because the mean of its divisors is an integer number (65573410).

Almost surely, 2^131146819 is an apocalyptic number.

131146819 is a deficient number, since it is larger than the sum of its proper divisors (1).

131146819 is an equidigital number, since it uses as much as digits as its factorization.

131146819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 34.

The square root of 131146819 is about 11451.9351639799. The cubic root of 131146819 is about 508.0649716949.

The spelling of 131146819 in words is "one hundred thirty-one million, one hundred forty-six thousand, eight hundred nineteen".