15102002 has 4 divisors (see below), whose sum is σ = 22653006. Its totient is φ = 7551000.

The previous prime is 15101969. The next prime is 15102019. The reversal of 15102002 is 20020151.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9853321 + 5248681 = 3139^2 + 2291^2 .

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 as a sum of consecutive naturals, namely, 3775499 + ... + 3775502.

Almost surely, 2^15102002 is an apocalyptic number.

15102002 is a deficient number, since it is larger than the sum of its proper divisors (7551004).

15102002 is an equidigital number, since it uses as much as digits as its factorization.

15102002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7551003.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 15102002 is about 3886.1294368562. The cubic root of 15102002 is about 247.1789640950.

Adding to 15102002 its reverse (20020151), we get a palindrome (35122153).

The spelling of 15102002 in words is "fifteen million, one hundred two thousand, two".