15225146 has 8 divisors (see below), whose sum is σ = 22891764. Its totient is φ = 7594560.

The previous prime is 15225113. The next prime is 15225157. The reversal of 15225146 is 64152251.

It can be written as a sum of positive squares in 2 ways, for example, as 13432225 + 1792921 = 3665^2 + 1339^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 7925 + ... + 9656.

Almost surely, 2^15225146 is an apocalyptic number.

15225146 is a deficient number, since it is larger than the sum of its proper divisors (7666618).

15225146 is a wasteful number, since it uses less digits than its factorization.

15225146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18016.

The product of its digits is 2400, while the sum is 26.

The square root of 15225146 is about 3901.9413117063. The cubic root of 15225146 is about 247.8489910547.

Adding to 15225146 its reverse (64152251), we get a palindrome (79377397).

The spelling of 15225146 in words is "fifteen million, two hundred twenty-five thousand, one hundred forty-six".