15730236157 has 2 divisors, whose sum is σ = 15730236158. Its totient is φ = 15730236156.

The previous prime is 15730236149. The next prime is 15730236253. The reversal of 15730236157 is 75163203751.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14325935481 + 1404300676 = 119691^2 + 37474^2 .

It is a cyclic number.

It is not a de Polignac number, because 15730236157 - 2³ = 15730236149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15730236757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7865118078 + 7865118079.

It is an arithmetic number, because the mean of its divisors is an integer number (7865118079).

Almost surely, 2^15730236157 is an apocalyptic number.

It is an amenable number.

15730236157 is a deficient number, since it is larger than the sum of its proper divisors (1).

15730236157 is an equidigital number, since it uses as much as digits as its factorization.

15730236157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 132300, while the sum is 40.

The spelling of 15730236157 in words is "fifteen billion, seven hundred thirty million, two hundred thirty-six thousand, one hundred fifty-seven".