22161675 has 24 divisors (see below), whose sum is σ = 37426176. Its totient is φ = 11566240.

The previous prime is 22161661. The next prime is 22161679. The reversal of 22161675 is 57616122.

It is not a de Polignac number, because 22161675 - 2⁷ = 22161547 is a prime.

It is a super-2 number, since 2×22161675² = 982279677611250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22161679) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 382 + ... + 6668.

It is an arithmetic number, because the mean of its divisors is an integer number (1559424).

Almost surely, 2^22161675 is an apocalyptic number.

22161675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22161675 is a deficient number, since it is larger than the sum of its proper divisors (15264501).

22161675 is a wasteful number, since it uses less digits than its factorization.

22161675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6347 (or 6342 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 22161675 is about 4707.6188248413. The cubic root of 22161675 is about 280.8886519908. Note that the first 3 decimals are identical.

Adding to 22161675 its reverse (57616122), we get a palindrome (79777797).

The spelling of 22161675 in words is "twenty-two million, one hundred sixty-one thousand, six hundred seventy-five".