613381499 has 2 divisors, whose sum is σ = 613381500. Its totient is φ = 613381498.

The previous prime is 613381441. The next prime is 613381511. The reversal of 613381499 is 994183316.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 613381499 - 2¹² = 613377403 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (613381399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306690749 + 306690750.

It is an arithmetic number, because the mean of its divisors is an integer number (306690750).

Almost surely, 2^613381499 is an apocalyptic number.

613381499 is a deficient number, since it is larger than the sum of its proper divisors (1).

613381499 is an equidigital number, since it uses as much as digits as its factorization.

613381499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 44.

The square root of 613381499 is about 24766.5399077061. The cubic root of 613381499 is about 849.6568391022.

The spelling of 613381499 in words is "six hundred thirteen million, three hundred eighty-one thousand, four hundred ninety-nine".