15191129 has 2 divisors, whose sum is σ = 15191130. Its totient is φ = 15191128.

The previous prime is 15191119. The next prime is 15191131. The reversal of 15191129 is 92119151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15031129 + 160000 = 3877^2 + 400^2 .

It is an emirp because it is prime and its reverse (92119151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15191129 - 2⁸ = 15190873 is a prime.

It is a Sophie Germain prime.

Together with 15191131, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (15191119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7595564 + 7595565.

It is an arithmetic number, because the mean of its divisors is an integer number (7595565).

Almost surely, 2^15191129 is an apocalyptic number.

It is an amenable number.

15191129 is a deficient number, since it is larger than the sum of its proper divisors (1).

15191129 is an equidigital number, since it uses as much as digits as its factorization.

15191129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 810, while the sum is 29.

The square root of 15191129 is about 3897.5798901370. The cubic root of 15191129 is about 247.6642666954.

The spelling of 15191129 in words is "fifteen million, one hundred ninety-one thousand, one hundred twenty-nine".