15121149 has 8 divisors (see below), whose sum is σ = 20812032. Its totient is φ = 9755520.

The previous prime is 15121111. The next prime is 15121157. The reversal of 15121149 is 94112151.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 15121149 - 2²³ = 6732541 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15126149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81204 + ... + 81389.

It is an arithmetic number, because the mean of its divisors is an integer number (2601504).

Almost surely, 2^15121149 is an apocalyptic number.

It is an amenable number.

15121149 is a deficient number, since it is larger than the sum of its proper divisors (5690883).

15121149 is a wasteful number, since it uses less digits than its factorization.

15121149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162627.

The product of its digits is 360, while the sum is 24.

The square root of 15121149 is about 3888.5921616955. The cubic root of 15121149 is about 247.2833815293.

The spelling of 15121149 in words is "fifteen million, one hundred twenty-one thousand, one hundred forty-nine".