15122412091 has 2 divisors, whose sum is σ = 15122412092. Its totient is φ = 15122412090.

The previous prime is 15122412083. The next prime is 15122412121. The reversal of 15122412091 is 19021422151.

It is a weak prime.

It is an emirp because it is prime and its reverse (19021422151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15122412091 - 2³ = 15122412083 is a prime.

It is not a weakly prime, because it can be changed into another prime (15122412001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7561206045 + 7561206046.

It is an arithmetic number, because the mean of its divisors is an integer number (7561206046).

Almost surely, 2^15122412091 is an apocalyptic number.

15122412091 is a deficient number, since it is larger than the sum of its proper divisors (1).

15122412091 is an equidigital number, since it uses as much as digits as its factorization.

15122412091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 28.

The spelling of 15122412091 in words is "fifteen billion, one hundred twenty-two million, four hundred twelve thousand, ninety-one".