22671155 has 32 divisors (see below), whose sum is σ = 30820608. Its totient is φ = 15897600.

The previous prime is 22671139. The next prime is 22671157. The reversal of 22671155 is 55117622.

It is not a de Polignac number, because 22671155 - 2⁴ = 22671139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22671157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125165 + ... + 125345.

It is an arithmetic number, because the mean of its divisors is an integer number (963144).

Almost surely, 2^22671155 is an apocalyptic number.

22671155 is a deficient number, since it is larger than the sum of its proper divisors (8149453).

22671155 is a wasteful number, since it uses less digits than its factorization.

22671155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287.

The product of its digits is 4200, while the sum is 29.

The square root of 22671155 is about 4761.4236316463. The cubic root of 22671155 is about 283.0248368534.

Adding to 22671155 its reverse (55117622), we get a palindrome (77788777).

The spelling of 22671155 in words is "twenty-two million, six hundred seventy-one thousand, one hundred fifty-five".