22130154 has 12 divisors (see below), whose sum is σ = 47948706. Its totient is φ = 7376712.

The previous prime is 22130149. The next prime is 22130177. The reversal of 22130154 is 45103122.

It can be written as a sum of positive squares in only one way, i.e., 18792225 + 3337929 = 4335^2 + 1827^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1229453 = 22130154 / (2 + 2 + 1 + 3 + 0 + 1 + 5 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 614709 + ... + 614744.

Almost surely, 2^22130154 is an apocalyptic number.

22130154 is an abundant number, since it is smaller than the sum of its proper divisors (25818552).

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

22130154 is a wasteful number, since it uses less digits than its factorization.

22130154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229461 (or 1229458 counting only the distinct ones).

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

The square root of 22130154 is about 4704.2697626731. The cubic root of 22130154 is about 280.7554175939.

Adding to 22130154 its reverse (45103122), we get a palindrome (67233276).

The spelling of 22130154 in words is "twenty-two million, one hundred thirty thousand, one hundred fifty-four".