14991313 has 2 divisors, whose sum is σ = 14991314. Its totient is φ = 14991312.

The previous prime is 14991311. The next prime is 14991349. The reversal of 14991313 is 31319941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14085009 + 906304 = 3753^2 + 952^2 .

It is a cyclic number.

It is not a de Polignac number, because 14991313 - 2¹ = 14991311 is a prime.

Together with 14991311, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (14991311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7495656 + 7495657.

It is an arithmetic number, because the mean of its divisors is an integer number (7495657).

Almost surely, 2^14991313 is an apocalyptic number.

It is an amenable number.

14991313 is a deficient number, since it is larger than the sum of its proper divisors (1).

14991313 is an equidigital number, since it uses as much as digits as its factorization.

14991313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916, while the sum is 31.

The square root of 14991313 is about 3871.8616969102. The cubic root of 14991313 is about 246.5735893855.

The spelling of 14991313 in words is "fourteen million, nine hundred ninety-one thousand, three hundred thirteen".