131170019 has 2 divisors, whose sum is σ = 131170020. Its totient is φ = 131170018.

The previous prime is 131170007. The next prime is 131170033. The reversal of 131170019 is 910071131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131170019 - 2⁸ = 131169763 is a prime.

It is a super-2 number, since 2×131170019² = 34411147768920722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 131169976 and 131170003.

It is not a weakly prime, because it can be changed into another prime (131173019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65585009 + 65585010.

It is an arithmetic number, because the mean of its divisors is an integer number (65585010).

Almost surely, 2^131170019 is an apocalyptic number.

131170019 is a deficient number, since it is larger than the sum of its proper divisors (1).

131170019 is an equidigital number, since it uses as much as digits as its factorization.

131170019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 189, while the sum is 23.

The square root of 131170019 is about 11452.9480484284. The cubic root of 131170019 is about 508.0949289913.

The spelling of 131170019 in words is "one hundred thirty-one million, one hundred seventy thousand, nineteen".