85456313 has 2 divisors, whose sum is σ = 85456314. Its totient is φ = 85456312.

The previous prime is 85456309. The next prime is 85456337. The reversal of 85456313 is 31365458.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80496784 + 4959529 = 8972^2 + 2227^2 .

It is a cyclic number.

It is not a de Polignac number, because 85456313 - 2² = 85456309 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (85446313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42728156 + 42728157.

It is an arithmetic number, because the mean of its divisors is an integer number (42728157).

Almost surely, 2^85456313 is an apocalyptic number.

It is an amenable number.

85456313 is a deficient number, since it is larger than the sum of its proper divisors (1).

85456313 is an equidigital number, since it uses as much as digits as its factorization.

85456313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 35.

The square root of 85456313 is about 9244.2583802055. The cubic root of 85456313 is about 440.4683597468.

The spelling of 85456313 in words is "eighty-five million, four hundred fifty-six thousand, three hundred thirteen".