15121002 has 16 divisors (see below), whose sum is σ = 32568480. Its totient is φ = 4652592.

The previous prime is 15120997. The next prime is 15121003. The reversal of 15121002 is 20012151.

Added to its reverse (20012151) it gives a triangular number (35133153 = T₈₃₈₂).

It is not an unprimeable number, because it can be changed into a prime (15121003) 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, 96852 + ... + 97007.

It is an arithmetic number, because the mean of its divisors is an integer number (2035530).

Almost surely, 2^15121002 is an apocalyptic number.

15121002 is an abundant number, since it is smaller than the sum of its proper divisors (17447478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15121002 is a wasteful number, since it uses less digits than its factorization.

15121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193877.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 15121002 is about 3888.5732602074. The cubic root of 15121002 is about 247.2825802063.

Adding to 15121002 its reverse (20012151), we get a palindrome (35133153).

The spelling of 15121002 in words is "fifteen million, one hundred twenty-one thousand, two".