139847859 has 6 divisors (see below), whose sum is σ = 202002476. Its totient is φ = 93231900.

The previous prime is 139847857. The next prime is 139847861. The reversal of 139847859 is 958748931.

139847859 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (139847857) and next prime (139847861).

It is not a de Polignac number, because 139847859 - 2¹ = 139847857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139847857) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7769317 + ... + 7769334.

Almost surely, 2^139847859 is an apocalyptic number.

139847859 is a deficient number, since it is larger than the sum of its proper divisors (62154617).

139847859 is a wasteful number, since it uses less digits than its factorization.

139847859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15538657 (or 15538654 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The square root of 139847859 is about 11825.7286879076. The cubic root of 139847859 is about 519.0612488554.

The spelling of 139847859 in words is "one hundred thirty-nine million, eight hundred forty-seven thousand, eight hundred fifty-nine".