153312493 has 2 divisors, whose sum is σ = 153312494. Its totient is φ = 153312492.

The previous prime is 153312487. The next prime is 153312521. The reversal of 153312493 is 394213351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133125444 + 20187049 = 11538^2 + 4493^2 .

It is a cyclic number.

It is not a de Polignac number, because 153312493 - 2⁵ = 153312461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (153312193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76656246 + 76656247.

It is an arithmetic number, because the mean of its divisors is an integer number (76656247).

Almost surely, 2^153312493 is an apocalyptic number.

It is an amenable number.

153312493 is a deficient number, since it is larger than the sum of its proper divisors (1).

153312493 is an equidigital number, since it uses as much as digits as its factorization.

153312493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 31.

The square root of 153312493 is about 12381.9422143701. The cubic root of 153312493 is about 535.2120078609.

The spelling of 153312493 in words is "one hundred fifty-three million, three hundred twelve thousand, four hundred ninety-three".