22150154 has 24 divisors (see below), whose sum is σ = 36506820. Its totient is φ = 10079160.

The previous prime is 22150129. The next prime is 22150157. The reversal of 22150154 is 45105122.

It can be written as a sum of positive squares in 2 ways, for example, as 6901129 + 15249025 = 2627^2 + 3905^2 .

It is not an unprimeable number, because it can be changed into a prime (22150157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 311939 + ... + 312009.

Almost surely, 2^22150154 is an apocalyptic number.

22150154 is a deficient number, since it is larger than the sum of its proper divisors (14356666).

22150154 is an frugal number, since it uses more digits than its factorization.

22150154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 22150154 is about 4706.3950110461. The cubic root of 22150154 is about 280.8399691619.

Adding to 22150154 its reverse (45105122), we get a palindrome (67255276).

The spelling of 22150154 in words is "twenty-two million, one hundred fifty thousand, one hundred fifty-four".