139711283 has 4 divisors (see below), whose sum is σ = 139949880. Its totient is φ = 139472688.

The previous prime is 139711277. The next prime is 139711301. The reversal of 139711283 is 382117931.

It is a happy number.

139711283 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, and also an emirpimes, since its reverse is a distinct semiprime: 382117931 = 13 ⋅29393687.

It is a cyclic number.

It is not a de Polignac number, because 139711283 - 2⁴ = 139711267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139711783) 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, 118418 + ... + 119591.

It is an arithmetic number, because the mean of its divisors is an integer number (34987470).

Almost surely, 2^139711283 is an apocalyptic number.

139711283 is a deficient number, since it is larger than the sum of its proper divisors (238597).

139711283 is an equidigital number, since it uses as much as digits as its factorization.

139711283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238596.

The product of its digits is 9072, while the sum is 35.

The square root of 139711283 is about 11819.9527494825. The cubic root of 139711283 is about 518.8922213619.

The spelling of 139711283 in words is "one hundred thirty-nine million, seven hundred eleven thousand, two hundred eighty-three".