345157157 has 2 divisors, whose sum is σ = 345157158. Its totient is φ = 345157156.

The previous prime is 345157151. The next prime is 345157187. The reversal of 345157157 is 751751543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 343323841 + 1833316 = 18529^2 + 1354^2 .

It is a cyclic number.

It is not a de Polignac number, because 345157157 - 2²⁰ = 344108581 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 345157157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345157151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172578578 + 172578579.

It is an arithmetic number, because the mean of its divisors is an integer number (172578579).

Almost surely, 2^345157157 is an apocalyptic number.

It is an amenable number.

345157157 is a deficient number, since it is larger than the sum of its proper divisors (1).

345157157 is an equidigital number, since it uses as much as digits as its factorization.

345157157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73500, while the sum is 38.

The square root of 345157157 is about 18578.4056635654. The cubic root of 345157157 is about 701.4643881301.

The spelling of 345157157 in words is "three hundred forty-five million, one hundred fifty-seven thousand, one hundred fifty-seven".