15141520121 has 8 divisors (see below), whose sum is σ = 18635717184. Its totient is φ = 11980103760.

The previous prime is 15141520091. The next prime is 15141520139. The reversal of 15141520121 is 12102514151.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 15141520121 - 2¹⁰ = 15141519097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15141520171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83195075 + ... + 83195256.

It is an arithmetic number, because the mean of its divisors is an integer number (2329464648).

Almost surely, 2^15141520121 is an apocalyptic number.

It is an amenable number.

15141520121 is a deficient number, since it is larger than the sum of its proper divisors (3494197063).

15141520121 is a wasteful number, since it uses less digits than its factorization.

15141520121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166390351.

The product of its (nonzero) digits is 400, while the sum is 23.

The spelling of 15141520121 in words is "fifteen billion, one hundred forty-one million, five hundred twenty thousand, one hundred twenty-one".