15010121 has 6 divisors (see below), whose sum is σ = 17460810. Its totient is φ = 12865776.

The previous prime is 15010109. The next prime is 15010157. The reversal of 15010121 is 12101051.

It can be written as a sum of positive squares in only one way, i.e., 9834496 + 5175625 = 3136^2 + 2275^2 .

It is not a de Polignac number, because 15010121 - 2¹⁰ = 15009097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15010321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 153116 + ... + 153213.

It is an arithmetic number, because the mean of its divisors is an integer number (2910135).

Almost surely, 2^15010121 is an apocalyptic number.

It is an amenable number.

15010121 is a deficient number, since it is larger than the sum of its proper divisors (2450689).

15010121 is an equidigital number, since it uses as much as digits as its factorization.

15010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306343 (or 306336 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 11.

The square root of 15010121 is about 3874.2897413591. The cubic root of 15010121 is about 246.6766628122.

Adding to 15010121 its reverse (12101051), we get a palindrome (27111172).

The spelling of 15010121 in words is "fifteen million, ten thousand, one hundred twenty-one".