15106890257 has 2 divisors, whose sum is σ = 15106890258. Its totient is φ = 15106890256.

The previous prime is 15106890223. The next prime is 15106890277. The reversal of 15106890257 is 75209860151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13088275216 + 2018615041 = 114404^2 + 44929^2 .

It is a cyclic number.

It is not a de Polignac number, because 15106890257 - 2²² = 15102695953 is a prime.

It is not a weakly prime, because it can be changed into another prime (15106890277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7553445128 + 7553445129.

It is an arithmetic number, because the mean of its divisors is an integer number (7553445129).

Almost surely, 2^15106890257 is an apocalyptic number.

It is an amenable number.

15106890257 is a deficient number, since it is larger than the sum of its proper divisors (1).

15106890257 is an equidigital number, since it uses as much as digits as its factorization.

15106890257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 44.

The spelling of 15106890257 in words is "fifteen billion, one hundred six million, eight hundred ninety thousand, two hundred fifty-seven".