139134299 has 4 divisors (see below), whose sum is σ = 139160736. Its totient is φ = 139107864.

The previous prime is 139134253. The next prime is 139134353. The reversal of 139134299 is 992431931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 992431931 = 47 ⋅21115573.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139134299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139134209) 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, 2339 + ... + 16844.

It is an arithmetic number, because the mean of its divisors is an integer number (34790184).

Almost surely, 2^139134299 is an apocalyptic number.

139134299 is a deficient number, since it is larger than the sum of its proper divisors (26437).

139134299 is an equidigital number, since it uses as much as digits as its factorization.

139134299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26436.

The product of its digits is 52488, while the sum is 41.

The square root of 139134299 is about 11795.5202937386. The cubic root of 139134299 is about 518.1769233605.

The spelling of 139134299 in words is "one hundred thirty-nine million, one hundred thirty-four thousand, two hundred ninety-nine".