15091102987 has 2 divisors, whose sum is σ = 15091102988. Its totient is φ = 15091102986.

The previous prime is 15091102973. The next prime is 15091103023. The reversal of 15091102987 is 78920119051.

It is a weak prime.

It is an emirp because it is prime and its reverse (78920119051) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15091102987 is a prime.

It is not a weakly prime, because it can be changed into another prime (15091102927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7545551493 + 7545551494.

It is an arithmetic number, because the mean of its divisors is an integer number (7545551494).

Almost surely, 2^15091102987 is an apocalyptic number.

15091102987 is a deficient number, since it is larger than the sum of its proper divisors (1).

15091102987 is an equidigital number, since it uses as much as digits as its factorization.

15091102987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 43.

The spelling of 15091102987 in words is "fifteen billion, ninety-one million, one hundred two thousand, nine hundred eighty-seven".