157445339 has 2 divisors, whose sum is σ = 157445340. Its totient is φ = 157445338.

The previous prime is 157445303. The next prime is 157445383. The reversal of 157445339 is 933544751.

It is a weak prime.

It is an emirp because it is prime and its reverse (933544751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157445339 - 2¹² = 157441243 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 157445296 and 157445305.

It is not a weakly prime, because it can be changed into another prime (157435339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78722669 + 78722670.

It is an arithmetic number, because the mean of its divisors is an integer number (78722670).

Almost surely, 2^157445339 is an apocalyptic number.

157445339 is a deficient number, since it is larger than the sum of its proper divisors (1).

157445339 is an equidigital number, since it uses as much as digits as its factorization.

157445339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 41.

The square root of 157445339 is about 12547.7224626623. The cubic root of 157445339 is about 539.9786674243.

The spelling of 157445339 in words is "one hundred fifty-seven million, four hundred forty-five thousand, three hundred thirty-nine".