15151252157 has 2 divisors, whose sum is σ = 15151252158. Its totient is φ = 15151252156.

The previous prime is 15151252147. The next prime is 15151252219. The reversal of 15151252157 is 75125215151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13997019481 + 1154232676 = 118309^2 + 33974^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15151252157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15151252147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7575626078 + 7575626079.

It is an arithmetic number, because the mean of its divisors is an integer number (7575626079).

Almost surely, 2^15151252157 is an apocalyptic number.

It is an amenable number.

15151252157 is a deficient number, since it is larger than the sum of its proper divisors (1).

15151252157 is an equidigital number, since it uses as much as digits as its factorization.

15151252157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17500, while the sum is 35.

The spelling of 15151252157 in words is "fifteen billion, one hundred fifty-one million, two hundred fifty-two thousand, one hundred fifty-seven".