15145124251 has 2 divisors, whose sum is σ = 15145124252. Its totient is φ = 15145124250.

The previous prime is 15145124209. The next prime is 15145124279. The reversal of 15145124251 is 15242154151.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15145124251 - 2⁹ = 15145123739 is a prime.

It is a super-2 number, since 2×15145124251² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (15145124651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7572562125 + 7572562126.

It is an arithmetic number, because the mean of its divisors is an integer number (7572562126).

Almost surely, 2^15145124251 is an apocalyptic number.

15145124251 is a deficient number, since it is larger than the sum of its proper divisors (1).

15145124251 is an equidigital number, since it uses as much as digits as its factorization.

15145124251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8000, while the sum is 31.

The spelling of 15145124251 in words is "fifteen billion, one hundred forty-five million, one hundred twenty-four thousand, two hundred fifty-one".