15005230987 has 2 divisors, whose sum is σ = 15005230988. Its totient is φ = 15005230986.

The previous prime is 15005230949. The next prime is 15005231039. The reversal of 15005230987 is 78903250051.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15005230987 - 2¹¹ = 15005228939 is a prime.

It is not a weakly prime, because it can be changed into another prime (15005230907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7502615493 + 7502615494.

It is an arithmetic number, because the mean of its divisors is an integer number (7502615494).

Almost surely, 2^15005230987 is an apocalyptic number.

15005230987 is a deficient number, since it is larger than the sum of its proper divisors (1).

15005230987 is an equidigital number, since it uses as much as digits as its factorization.

15005230987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 15005230987 in words is "fifteen billion, five million, two hundred thirty thousand, nine hundred eighty-seven".