15630155 has 4 divisors (see below), whose sum is σ = 18756192. Its totient is φ = 12504120.

The previous prime is 15630149. The next prime is 15630203. The reversal of 15630155 is 55103651.

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

It is not a de Polignac number, because 15630155 - 2¹⁴ = 15613771 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1563011 + ... + 1563020.

It is an arithmetic number, because the mean of its divisors is an integer number (4689048).

Almost surely, 2^15630155 is an apocalyptic number.

15630155 is a deficient number, since it is larger than the sum of its proper divisors (3126037).

15630155 is an equidigital number, since it uses as much as digits as its factorization.

15630155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3126036.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 15630155 is about 3953.4990830908. The cubic root of 15630155 is about 250.0274903104.

The spelling of 15630155 in words is "fifteen million, six hundred thirty thousand, one hundred fifty-five".