139893205 has 8 divisors (see below), whose sum is σ = 168066432. Its totient is φ = 111784848.

The previous prime is 139893157. The next prime is 139893227. The reversal of 139893205 is 502398931.

139893205 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 a cyclic number.

It is not a de Polignac number, because 139893205 - 2⁷ = 139893077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11337 + ... + 20206.

It is an arithmetic number, because the mean of its divisors is an integer number (21008304).

Almost surely, 2^139893205 is an apocalyptic number.

It is an amenable number.

139893205 is a deficient number, since it is larger than the sum of its proper divisors (28173227).

139893205 is an equidigital number, since it uses as much as digits as its factorization.

139893205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32435.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 139893205 is about 11827.6457928026. The cubic root of 139893205 is about 519.1173450731.

The spelling of 139893205 in words is "one hundred thirty-nine million, eight hundred ninety-three thousand, two hundred five".