157222339 has 2 divisors, whose sum is σ = 157222340. Its totient is φ = 157222338.

The previous prime is 157222333. The next prime is 157222343. The reversal of 157222339 is 933222751.

157222339 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (933222751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157222339 - 2¹¹ = 157220291 is a prime.

It is not a weakly prime, because it can be changed into another prime (157222333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78611169 + 78611170.

It is an arithmetic number, because the mean of its divisors is an integer number (78611170).

Almost surely, 2^157222339 is an apocalyptic number.

157222339 is a deficient number, since it is larger than the sum of its proper divisors (1).

157222339 is an equidigital number, since it uses as much as digits as its factorization.

157222339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 34.

The square root of 157222339 is about 12538.8332391814. The cubic root of 157222339 is about 539.7236114178.

The spelling of 157222339 in words is "one hundred fifty-seven million, two hundred twenty-two thousand, three hundred thirty-nine".