22154150 has 24 divisors (see below), whose sum is σ = 42538944. Its totient is φ = 8575200.

The previous prime is 22154137. The next prime is 22154177. The reversal of 22154150 is 5145122.

22154150 = T₁₁₈₀ + T₁₁₈₁ + ... + T₁₂₁₀.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5597 + ... + 8696.

It is an arithmetic number, because the mean of its divisors is an integer number (1772456).

Almost surely, 2^22154150 is an apocalyptic number.

22154150 is a deficient number, since it is larger than the sum of its proper divisors (20384794).

22154150 is a wasteful number, since it uses less digits than its factorization.

22154150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14336 (or 14331 counting only the distinct ones).

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

The square root of 22154150 is about 4706.8195206530. The cubic root of 22154150 is about 280.8568564642.

Adding to 22154150 its reverse (5145122), we get a palindrome (27299272).

Subtracting from 22154150 its reverse (5145122), we obtain a triangular number (17009028 = T₅₈₃₂).

The spelling of 22154150 in words is "twenty-two million, one hundred fifty-four thousand, one hundred fifty".