157090757 has 2 divisors, whose sum is σ = 157090758. Its totient is φ = 157090756.

The previous prime is 157090751. The next prime is 157090763. The reversal of 157090757 is 757090751.

It is a balanced prime because it is at equal distance from previous prime (157090751) and next prime (157090763).

It can be written as a sum of positive squares in only one way, i.e., 106481761 + 50608996 = 10319^2 + 7114^2 .

It is an emirp because it is prime and its reverse (757090751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157090757 - 2⁸ = 157090501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157090751) 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, 78545378 + 78545379.

It is an arithmetic number, because the mean of its divisors is an integer number (78545379).

Almost surely, 2^157090757 is an apocalyptic number.

It is an amenable number.

157090757 is a deficient number, since it is larger than the sum of its proper divisors (1).

157090757 is an equidigital number, since it uses as much as digits as its factorization.

157090757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77175, while the sum is 41.

The square root of 157090757 is about 12533.5851614771. The cubic root of 157090757 is about 539.5730014940.

The spelling of 157090757 in words is "one hundred fifty-seven million, ninety thousand, seven hundred fifty-seven".