131970499 has 2 divisors, whose sum is σ = 131970500. Its totient is φ = 131970498.

The previous prime is 131970493. The next prime is 131970547. The reversal of 131970499 is 994079131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131970499 - 2³ = 131970491 is a prime.

It is not a weakly prime, because it can be changed into another prime (131970491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65985249 + 65985250.

It is an arithmetic number, because the mean of its divisors is an integer number (65985250).

Almost surely, 2^131970499 is an apocalyptic number.

131970499 is a deficient number, since it is larger than the sum of its proper divisors (1).

131970499 is an equidigital number, since it uses as much as digits as its factorization.

131970499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 131970499 is about 11487.8413551024. The cubic root of 131970499 is about 509.1264026825.

The spelling of 131970499 in words is "one hundred thirty-one million, nine hundred seventy thousand, four hundred ninety-nine".