15172002 has 16 divisors (see below), whose sum is σ = 33715680. Its totient is φ = 5057316.

The previous prime is 15171997. The next prime is 15172039. The reversal of 15172002 is 20027151.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140428 + ... + 140535.

It is an arithmetic number, because the mean of its divisors is an integer number (2107230).

Almost surely, 2^15172002 is an apocalyptic number.

15172002 is an abundant number, since it is smaller than the sum of its proper divisors (18543678).

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

15172002 is a wasteful number, since it uses less digits than its factorization.

15172002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280974 (or 280968 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 15172002 is about 3895.1254151824. The cubic root of 15172002 is about 247.5602791653.

Adding to 15172002 its reverse (20027151), we get a palindrome (35199153).

The spelling of 15172002 in words is "fifteen million, one hundred seventy-two thousand, two".