131403619 has 2 divisors, whose sum is σ = 131403620. Its totient is φ = 131403618.

The previous prime is 131403593. The next prime is 131403631. The reversal of 131403619 is 916304131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131403619 - 2⁷ = 131403491 is a prime.

It is a super-2 number, since 2×131403619² = 34533822172594322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131403689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65701809 + 65701810.

It is an arithmetic number, because the mean of its divisors is an integer number (65701810).

Almost surely, 2^131403619 is an apocalyptic number.

131403619 is a deficient number, since it is larger than the sum of its proper divisors (1).

131403619 is an equidigital number, since it uses as much as digits as its factorization.

131403619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 131403619 is about 11463.1417595701. The cubic root of 131403619 is about 508.3963713158.

The spelling of 131403619 in words is "one hundred thirty-one million, four hundred three thousand, six hundred nineteen".