15047121 has 16 divisors (see below), whose sum is σ = 20878848. Its totient is φ = 9628800.

The previous prime is 15047117. The next prime is 15047147. The reversal of 15047121 is 12174051.

It is a happy number.

It is not a de Polignac number, because 15047121 - 2² = 15047117 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15047111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12151 + ... + 13331.

It is an arithmetic number, because the mean of its divisors is an integer number (1304928).

Almost surely, 2^15047121 is an apocalyptic number.

It is an amenable number.

15047121 is a deficient number, since it is larger than the sum of its proper divisors (5831727).

15047121 is a wasteful number, since it uses less digits than its factorization.

15047121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352.

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 15047121 is about 3879.0618711230. The cubic root of 15047121 is about 246.8791827738.

The spelling of 15047121 in words is "fifteen million, forty-seven thousand, one hundred twenty-one".