155319323 has 2 divisors, whose sum is σ = 155319324. Its totient is φ = 155319322.

The previous prime is 155319317. The next prime is 155319337. The reversal of 155319323 is 323913551.

155319323 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 is a cyclic number.

It is not a de Polignac number, because 155319323 - 2¹² = 155315227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155319323.

It is not a weakly prime, because it can be changed into another prime (155319343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77659661 + 77659662.

It is an arithmetic number, because the mean of its divisors is an integer number (77659662).

Almost surely, 2^155319323 is an apocalyptic number.

155319323 is a deficient number, since it is larger than the sum of its proper divisors (1).

155319323 is an equidigital number, since it uses as much as digits as its factorization.

155319323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12150, while the sum is 32.

The square root of 155319323 is about 12462.7173200711. The cubic root of 155319323 is about 537.5371647639.

The spelling of 155319323 in words is "one hundred fifty-five million, three hundred nineteen thousand, three hundred twenty-three".