499365401 has 2 divisors, whose sum is σ = 499365402. Its totient is φ = 499365400.

The previous prime is 499365379. The next prime is 499365403. The reversal of 499365401 is 104563994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 268173376 + 231192025 = 16376^2 + 15205^2 .

It is a cyclic number.

It is not a de Polignac number, because 499365401 - 2²² = 495171097 is a prime.

Together with 499365403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (499365403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249682700 + 249682701.

It is an arithmetic number, because the mean of its divisors is an integer number (249682701).

Almost surely, 2^499365401 is an apocalyptic number.

It is an amenable number.

499365401 is a deficient number, since it is larger than the sum of its proper divisors (1).

499365401 is an equidigital number, since it uses as much as digits as its factorization.

499365401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 499365401 is about 22346.4852046133. The cubic root of 499365401 is about 793.3645961168.

The spelling of 499365401 in words is "four hundred ninety-nine million, three hundred sixty-five thousand, four hundred one".