15222094 has 4 divisors (see below), whose sum is σ = 22833144. Its totient is φ = 7611046.

The previous prime is 15222091. The next prime is 15222101. The reversal of 15222094 is 49022251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49022251 = 191 ⋅256661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15222091) by changing a digit.

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 as a sum of consecutive naturals, namely, 3805522 + ... + 3805525.

It is an arithmetic number, because the mean of its divisors is an integer number (5708286).

Almost surely, 2^15222094 is an apocalyptic number.

15222094 is a deficient number, since it is larger than the sum of its proper divisors (7611050).

15222094 is an equidigital number, since it uses as much as digits as its factorization.

15222094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7611049.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 15222094 is about 3901.5502047263. The cubic root of 15222094 is about 247.8324288562.

The spelling of 15222094 in words is "fifteen million, two hundred twenty-two thousand, ninety-four".