15112109 has 2 divisors, whose sum is σ = 15112110. Its totient is φ = 15112108.

The previous prime is 15112063. The next prime is 15112117. The reversal of 15112109 is 90121151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13213225 + 1898884 = 3635^2 + 1378^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15112109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15112129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7556054 + 7556055.

It is an arithmetic number, because the mean of its divisors is an integer number (7556055).

Almost surely, 2^15112109 is an apocalyptic number.

It is an amenable number.

15112109 is a deficient number, since it is larger than the sum of its proper divisors (1).

15112109 is an equidigital number, since it uses as much as digits as its factorization.

15112109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 20.

The square root of 15112109 is about 3887.4296135107. The cubic root of 15112109 is about 247.2340932247.

The spelling of 15112109 in words is "fifteen million, one hundred twelve thousand, one hundred nine".