139793311 has 8 divisors (see below), whose sum is σ = 165273120. Its totient is φ = 115690848.

The previous prime is 139793309. The next prime is 139793323. The reversal of 139793311 is 113397931.

139793311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 139793311 - 2¹ = 139793309 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 (139793111) 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, 344116 + ... + 344521.

It is an arithmetic number, because the mean of its divisors is an integer number (20659140).

Almost surely, 2^139793311 is an apocalyptic number.

139793311 is a deficient number, since it is larger than the sum of its proper divisors (25479809).

139793311 is an equidigital number, since it uses as much as digits as its factorization.

139793311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688673.

The product of its digits is 15309, while the sum is 37.

The square root of 139793311 is about 11823.4221357439. The cubic root of 139793311 is about 518.9937530418.

The spelling of 139793311 in words is "one hundred thirty-nine million, seven hundred ninety-three thousand, three hundred eleven".