22154073 has 16 divisors (see below), whose sum is σ = 30412800. Its totient is φ = 14336784.

The previous prime is 22154051. The next prime is 22154081. The reversal of 22154073 is 37045122.

It is not a de Polignac number, because 22154073 - 2¹² = 22149977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22154003) 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 in 15 ways as a sum of consecutive naturals, for example, 25240 + ... + 26102.

It is an arithmetic number, because the mean of its divisors is an integer number (1900800).

Almost surely, 2^22154073 is an apocalyptic number.

It is an amenable number.

22154073 is a deficient number, since it is larger than the sum of its proper divisors (8258727).

22154073 is a wasteful number, since it uses less digits than its factorization.

22154073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 22154073 is about 4706.8113410248. The cubic root of 22154073 is about 280.8565310774.

Adding to 22154073 its reverse (37045122), we get a palindrome (59199195).

The spelling of 22154073 in words is "twenty-two million, one hundred fifty-four thousand, seventy-three".