153913321 has 2 divisors, whose sum is σ = 153913322. Its totient is φ = 153913320.

The previous prime is 153913301. The next prime is 153913369. The reversal of 153913321 is 123319351.

153913321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115025625 + 38887696 = 10725^2 + 6236^2 .

It is an emirp because it is prime and its reverse (123319351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 153913321 - 2⁵ = 153913289 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 153913321.

It is not a weakly prime, because it can be changed into another prime (153913301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76956660 + 76956661.

It is an arithmetic number, because the mean of its divisors is an integer number (76956661).

Almost surely, 2^153913321 is an apocalyptic number.

It is an amenable number.

153913321 is a deficient number, since it is larger than the sum of its proper divisors (1).

153913321 is an equidigital number, since it uses as much as digits as its factorization.

153913321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2430, while the sum is 28.

The square root of 153913321 is about 12406.1807579932. The cubic root of 153913321 is about 535.9102575397.

The spelling of 153913321 in words is "one hundred fifty-three million, nine hundred thirteen thousand, three hundred twenty-one".