131140019 has 4 divisors (see below), whose sum is σ = 131189640. Its totient is φ = 131090400.

The previous prime is 131140007. The next prime is 131140049. The reversal of 131140019 is 910041131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131140019 is a prime.

It is a super-2 number, since 2×131140019² = 34395409166640722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131140049) 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, 20609 + ... + 26210.

It is an arithmetic number, because the mean of its divisors is an integer number (32797410).

Almost surely, 2^131140019 is an apocalyptic number.

131140019 is a deficient number, since it is larger than the sum of its proper divisors (49621).

131140019 is an equidigital number, since it uses as much as digits as its factorization.

131140019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49620.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 131140019 is about 11451.6382670778. The cubic root of 131140019 is about 508.0561904385.

The spelling of 131140019 in words is "one hundred thirty-one million, one hundred forty thousand, nineteen".