157173323 has 2 divisors, whose sum is σ = 157173324. Its totient is φ = 157173322.

The previous prime is 157173319. The next prime is 157173337. The reversal of 157173323 is 323371751.

157173323 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 an emirp because it is prime and its reverse (323371751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157173323 - 2² = 157173319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157173323.

It is not a weakly prime, because it can be changed into another prime (157173343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78586661 + 78586662.

It is an arithmetic number, because the mean of its divisors is an integer number (78586662).

Almost surely, 2^157173323 is an apocalyptic number.

157173323 is a deficient number, since it is larger than the sum of its proper divisors (1).

157173323 is an equidigital number, since it uses as much as digits as its factorization.

157173323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13230, while the sum is 32.

The square root of 157173323 is about 12536.8785189935. The cubic root of 157173323 is about 539.6675170942.

The spelling of 157173323 in words is "one hundred fifty-seven million, one hundred seventy-three thousand, three hundred twenty-three".