18365122 has 4 divisors (see below), whose sum is σ = 27547686. Its totient is φ = 9182560.

The previous prime is 18365119. The next prime is 18365129. The reversal of 18365122 is 22156381.

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

It can be written as a sum of positive squares in only one way, i.e., 17901361 + 463761 = 4231^2 + 681^2 .

It is not an unprimeable number, because it can be changed into a prime (18365129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4591279 + ... + 4591282.

Almost surely, 2^18365122 is an apocalyptic number.

18365122 is a deficient number, since it is larger than the sum of its proper divisors (9182564).

18365122 is an equidigital number, since it uses as much as digits as its factorization.

18365122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9182563.

The product of its digits is 2880, while the sum is 28.

The square root of 18365122 is about 4285.4547016624. The cubic root of 18365122 is about 263.8343102507.

The spelling of 18365122 in words is "eighteen million, three hundred sixty-five thousand, one hundred twenty-two".