11922138 has 24 divisors (see below), whose sum is σ = 26320788. Its totient is φ = 3898752.

The previous prime is 11922121. The next prime is 11922193. The reversal of 11922138 is 83122911.

It can be written as a sum of positive squares in 2 ways, for example, as 11716929 + 205209 = 3423^2 + 453^2 .

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, 5295 + ... + 7202.

Almost surely, 2^11922138 is an apocalyptic number.

11922138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11922138 is an abundant number, since it is smaller than the sum of its proper divisors (14398650).

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

11922138 is a wasteful number, since it uses less digits than its factorization.

11922138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12558 (or 12555 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 11922138 is about 3452.8449139804. The cubic root of 11922138 is about 228.4466084493.

The spelling of 11922138 in words is "eleven million, nine hundred twenty-two thousand, one hundred thirty-eight".