15222814 has 4 divisors (see below), whose sum is σ = 22834224. Its totient is φ = 7611406.

The previous prime is 15222791. The next prime is 15222833. The reversal of 15222814 is 41822251.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3805702 + ... + 3805705.

It is an arithmetic number, because the mean of its divisors is an integer number (5708556).

Almost surely, 2^15222814 is an apocalyptic number.

15222814 is a deficient number, since it is larger than the sum of its proper divisors (7611410).

15222814 is an equidigital number, since it uses as much as digits as its factorization.

15222814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7611409.

The product of its digits is 1280, while the sum is 25.

The square root of 15222814 is about 3901.6424746509. The cubic root of 15222814 is about 247.8363362585.

The spelling of 15222814 in words is "fifteen million, two hundred twenty-two thousand, eight hundred fourteen".