139299 has 8 divisors (see below), whose sum is σ = 189120. Its totient is φ = 91176.

The previous prime is 139297. The next prime is 139301. The reversal of 139299 is 992931.

It is an interprime number because it is at equal distance from previous prime (139297) and next prime (139301).

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

It is not a de Polignac number, because 139299 - 2¹ = 139297 is a prime.

It is a super-2 number, since 2×139299² = 38808422802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (139291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217 + ... + 570.

It is an arithmetic number, because the mean of its divisors is an integer number (23640).

2¹³⁹²⁹⁹ is an apocalyptic number.

139299 is a deficient number, since it is larger than the sum of its proper divisors (49821).

139299 is an equidigital number, since it uses as much as digits as its factorization.

139299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849.

The product of its digits is 4374, while the sum is 33.

The square root of 139299 is about 373.2278124685. The cubic root of 139299 is about 51.8381307673.

The spelling of 139299 in words is "one hundred thirty-nine thousand, two hundred ninety-nine".