157157302949 has 2 divisors, whose sum is σ = 157157302950. Its totient is φ = 157157302948.

The previous prime is 157157302933. The next prime is 157157303021. The reversal of 157157302949 is 949203751751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156511228225 + 646074724 = 395615^2 + 25418^2 .

It is a cyclic number.

It is not a de Polignac number, because 157157302949 - 2⁴ = 157157302933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157157302949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157157302649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78578651474 + 78578651475.

It is an arithmetic number, because the mean of its divisors is an integer number (78578651475).

Almost surely, 2^157157302949 is an apocalyptic number.

It is an amenable number.

157157302949 is a deficient number, since it is larger than the sum of its proper divisors (1).

157157302949 is an equidigital number, since it uses as much as digits as its factorization.

157157302949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2381400, while the sum is 53.

The spelling of 157157302949 in words is "one hundred fifty-seven billion, one hundred fifty-seven million, three hundred two thousand, nine hundred forty-nine".