157285730117 has 2 divisors, whose sum is σ = 157285730118. Its totient is φ = 157285730116.

The previous prime is 157285730101. The next prime is 157285730153. The reversal of 157285730117 is 711037582751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120329896996 + 36955833121 = 346886^2 + 192239^2 .

It is a cyclic number.

It is not a de Polignac number, because 157285730117 - 2⁴ = 157285730101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157285730177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78642865058 + 78642865059.

It is an arithmetic number, because the mean of its divisors is an integer number (78642865059).

Almost surely, 2^157285730117 is an apocalyptic number.

It is an amenable number.

157285730117 is a deficient number, since it is larger than the sum of its proper divisors (1).

157285730117 is an equidigital number, since it uses as much as digits as its factorization.

157285730117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 411600, while the sum is 47.

The spelling of 157285730117 in words is "one hundred fifty-seven billion, two hundred eighty-five million, seven hundred thirty thousand, one hundred seventeen".