15795145 has 4 divisors (see below), whose sum is σ = 18954180. Its totient is φ = 12636112.

The previous prime is 15795133. The next prime is 15795161. The reversal of 15795145 is 54159751.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8456464 + 7338681 = 2908^2 + 2709^2 .

It is a cyclic number.

It is not a de Polignac number, because 15795145 - 2⁹ = 15794633 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 1579510 + ... + 1579519.

It is an arithmetic number, because the mean of its divisors is an integer number (4738545).

Almost surely, 2^15795145 is an apocalyptic number.

It is an amenable number.

15795145 is a deficient number, since it is larger than the sum of its proper divisors (3159035).

15795145 is an equidigital number, since it uses as much as digits as its factorization.

15795145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3159034.

The product of its digits is 31500, while the sum is 37.

The square root of 15795145 is about 3974.3106320468. The cubic root of 15795145 is about 250.9041659932.

It can be divided in two parts, 1579 and 5145, that added together give a square (6724 = 82²).

The spelling of 15795145 in words is "fifteen million, seven hundred ninety-five thousand, one hundred forty-five".