138793000 has 32 divisors (see below), whose sum is σ = 324777960. Its totient is φ = 55516800.

The previous prime is 138792977. The next prime is 138793003. The reversal of 138793000 is 397831.

It can be written as a sum of positive squares in 4 ways, for example, as 44275716 + 94517284 = 6654^2 + 9722^2 .

It is not an unprimeable number, because it can be changed into a prime (138793003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68397 + ... + 70396.

Almost surely, 2^138793000 is an apocalyptic number.

138793000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138793000 is an abundant number, since it is smaller than the sum of its proper divisors (185984960).

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

138793000 is a wasteful number, since it uses less digits than its factorization.

138793000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138814 (or 138800 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 138793000 is about 11781.0440963439. The cubic root of 138793000 is about 517.7528772589.

The spelling of 138793000 in words is "one hundred thirty-eight million, seven hundred ninety-three thousand".