15036121 has 4 divisors (see below), whose sum is σ = 15049012. Its totient is φ = 15023232.

The previous prime is 15036113. The next prime is 15036139. The reversal of 15036121 is 12163051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12163051 = 701 ⋅17351.

It can be written as a sum of positive squares in 2 ways, for example, as 14745600 + 290521 = 3840^2 + 539^2 .

It is a cyclic number.

It is not a de Polignac number, because 15036121 - 2³ = 15036113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15036101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4500 + ... + 7093.

It is an arithmetic number, because the mean of its divisors is an integer number (3762253).

Almost surely, 2^15036121 is an apocalyptic number.

It is an amenable number.

15036121 is a deficient number, since it is larger than the sum of its proper divisors (12891).

15036121 is a wasteful number, since it uses less digits than its factorization.

15036121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12890.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 15036121 is about 3877.6437433060. The cubic root of 15036121 is about 246.8190088479.

Adding to 15036121 its reverse (12163051), we get a palindrome (27199172).

The spelling of 15036121 in words is "fifteen million, thirty-six thousand, one hundred twenty-one".