139107959 has 4 divisors (see below), whose sum is σ = 139135104. Its totient is φ = 139080816.

The previous prime is 139107953. The next prime is 139107961. The reversal of 139107959 is 959701931.

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 139107959 - 2¹² = 139103863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139107953) 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, 3287 + ... + 17000.

It is an arithmetic number, because the mean of its divisors is an integer number (34783776).

Almost surely, 2^139107959 is an apocalyptic number.

139107959 is a deficient number, since it is larger than the sum of its proper divisors (27145).

139107959 is an equidigital number, since it uses as much as digits as its factorization.

139107959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27144.

The product of its (nonzero) digits is 76545, while the sum is 44.

The square root of 139107959 is about 11794.4037153219. The cubic root of 139107959 is about 518.1442220025.

The spelling of 139107959 in words is "one hundred thirty-nine million, one hundred seven thousand, nine hundred fifty-nine".