139333099 has 4 divisors (see below), whose sum is σ = 146666440. Its totient is φ = 131999760.

The previous prime is 139333091. The next prime is 139333109. The reversal of 139333099 is 990333931.

It is a happy number.

139333099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 139333099 - 2³ = 139333091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139333091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3666642 + ... + 3666679.

It is an arithmetic number, because the mean of its divisors is an integer number (36666610).

Almost surely, 2^139333099 is an apocalyptic number.

139333099 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

139333099 is a deficient number, since it is larger than the sum of its proper divisors (7333341).

139333099 is an equidigital number, since it uses as much as digits as its factorization.

139333099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7333340.

The product of its (nonzero) digits is 59049, while the sum is 40.

The square root of 139333099 is about 11803.9442136940. The cubic root of 139333099 is about 518.4236024058.

The spelling of 139333099 in words is "one hundred thirty-nine million, three hundred thirty-three thousand, ninety-nine".