22103154 has 24 divisors (see below), whose sum is σ = 47977020. Its totient is φ = 7354368.

The previous prime is 22103131. The next prime is 22103197. The reversal of 22103154 is 45130122.

It can be written as a sum of positive squares in 2 ways, for example, as 21372129 + 731025 = 4623^2 + 855^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17554 + ... + 18770.

Almost surely, 2^22103154 is an apocalyptic number.

22103154 is an abundant number, since it is smaller than the sum of its proper divisors (25873866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22103154 is a wasteful number, since it uses less digits than its factorization.

22103154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2234 (or 2231 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 22103154 is about 4701.3991534436. The cubic root of 22103154 is about 280.6411921319.

Adding to 22103154 its reverse (45130122), we get a palindrome (67233276).

The spelling of 22103154 in words is "twenty-two million, one hundred three thousand, one hundred fifty-four".