408081253 has 2 divisors, whose sum is σ = 408081254. Its totient is φ = 408081252.

The previous prime is 408081239. The next prime is 408081263. The reversal of 408081253 is 352180804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 332077729 + 76003524 = 18223^2 + 8718^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-408081253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (408081263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204040626 + 204040627.

It is an arithmetic number, because the mean of its divisors is an integer number (204040627).

Almost surely, 2^408081253 is an apocalyptic number.

It is an amenable number.

408081253 is a deficient number, since it is larger than the sum of its proper divisors (1).

408081253 is an equidigital number, since it uses as much as digits as its factorization.

408081253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 408081253 is about 20201.0210880539. The cubic root of 408081253 is about 741.7351860499.

The spelling of 408081253 in words is "four hundred eight million, eighty-one thousand, two hundred fifty-three".