138796293 has 8 divisors (see below), whose sum is σ = 186197728. Its totient is φ = 91962864.

The previous prime is 138796277. The next prime is 138796309. The reversal of 138796293 is 392697831.

It is an interprime number because it is at equal distance from previous prime (138796277) and next prime (138796309).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 138796293 - 2⁴ = 138796277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138791293) 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, 141430 + ... + 142407.

It is an arithmetic number, because the mean of its divisors is an integer number (23274716).

Almost surely, 2^138796293 is an apocalyptic number.

It is an amenable number.

138796293 is a deficient number, since it is larger than the sum of its proper divisors (47401435).

138796293 is a wasteful number, since it uses less digits than its factorization.

138796293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284003.

The product of its digits is 489888, while the sum is 48.

The square root of 138796293 is about 11781.1838539257. The cubic root of 138796293 is about 517.7569719581.

The spelling of 138796293 in words is "one hundred thirty-eight million, seven hundred ninety-six thousand, two hundred ninety-three".