157283091517 has 2 divisors, whose sum is σ = 157283091518. Its totient is φ = 157283091516.

The previous prime is 157283091479. The next prime is 157283091523. The reversal of 157283091517 is 715190382751.

157283091517 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 can be written as a sum of positive squares in only one way, i.e., 80922611961 + 76360479556 = 284469^2 + 276334^2 .

It is a cyclic number.

It is not a de Polignac number, because 157283091517 - 2⁷ = 157283091389 is a prime.

It is a super-2 number, since 2×157283091517² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157283091547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78641545758 + 78641545759.

It is an arithmetic number, because the mean of its divisors is an integer number (78641545759).

Almost surely, 2^157283091517 is an apocalyptic number.

It is an amenable number.

157283091517 is a deficient number, since it is larger than the sum of its proper divisors (1).

157283091517 is an equidigital number, since it uses as much as digits as its factorization.

157283091517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 529200, while the sum is 49.

The spelling of 157283091517 in words is "one hundred fifty-seven billion, two hundred eighty-three million, ninety-one thousand, five hundred seventeen".