15001002 has 12 divisors (see below), whose sum is σ = 32502210. Its totient is φ = 5000328.

The previous prime is 15001001. The next prime is 15001027. The reversal of 15001002 is 20010051.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12595401 + 2405601 = 3549^2 + 1551^2 .

It is a super-2 number, since 2×15001002² = 450060122008008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (15001001) 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 5 ways as a sum of consecutive naturals, for example, 416677 + ... + 416712.

Almost surely, 2^15001002 is an apocalyptic number.

15001002 is an abundant number, since it is smaller than the sum of its proper divisors (17501208).

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

15001002 is a wasteful number, since it uses less digits than its factorization.

15001002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833397 (or 833394 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 9.

The square root of 15001002 is about 3873.1127016910. The cubic root of 15001002 is about 246.6266987430.

Adding to 15001002 its reverse (20010051), we get a palindrome (35011053).

The spelling of 15001002 in words is "fifteen million, one thousand, two".