138941022 has 32 divisors (see below), whose sum is σ = 316327680. Its totient is φ = 40272320.

The previous prime is 138941009. The next prime is 138941057. The reversal of 138941022 is 220149831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44247 + ... + 47282.

It is an arithmetic number, because the mean of its divisors is an integer number (9885240).

Almost surely, 2^138941022 is an apocalyptic number.

138941022 is an abundant number, since it is smaller than the sum of its proper divisors (177386658).

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

138941022 is a wasteful number, since it uses less digits than its factorization.

138941022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91568.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 138941022 is about 11787.3246328418. The cubic root of 138941022 is about 517.9368720991.

The spelling of 138941022 in words is "one hundred thirty-eight million, nine hundred forty-one thousand, twenty-two".