312255403 has 2 divisors, whose sum is σ = 312255404. Its totient is φ = 312255402.

The previous prime is 312255341. The next prime is 312255413. The reversal of 312255403 is 304552213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312255403 - 2²⁵ = 278700971 is a prime.

It is not a weakly prime, because it can be changed into another prime (312255413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156127701 + 156127702.

It is an arithmetic number, because the mean of its divisors is an integer number (156127702).

Almost surely, 2^312255403 is an apocalyptic number.

312255403 is a deficient number, since it is larger than the sum of its proper divisors (1).

312255403 is an equidigital number, since it uses as much as digits as its factorization.

312255403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 312255403 is about 17670.7499274932. The cubic root of 312255403 is about 678.4273076941.

The spelling of 312255403 in words is "three hundred twelve million, two hundred fifty-five thousand, four hundred three".