15155002 has 4 divisors (see below), whose sum is σ = 22732506. Its totient is φ = 7577500.

The previous prime is 15154987. The next prime is 15155003. The reversal of 15155002 is 20055151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20055151 = 251 ⋅79901.

It can be written as a sum of positive squares in only one way, i.e., 13329801 + 1825201 = 3651^2 + 1351^2 .

It is not an unprimeable number, because it can be changed into a prime (15155003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3788749 + ... + 3788752.

Almost surely, 2^15155002 is an apocalyptic number.

15155002 is a deficient number, since it is larger than the sum of its proper divisors (7577504).

15155002 is an equidigital number, since it uses as much as digits as its factorization.

15155002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7577503.

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 15155002 is about 3892.9425888395. The cubic root of 15155002 is about 247.4677820866.

The spelling of 15155002 in words is "fifteen million, one hundred fifty-five thousand, two".