139318043 has 4 divisors (see below), whose sum is σ = 147513240. Its totient is φ = 131122848.

The previous prime is 139318031. The next prime is 139318097. The reversal of 139318043 is 340813931.

It is a happy number.

139318043 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.

It is a cyclic number.

It is not a de Polignac number, because 139318043 - 2²⁴ = 122540827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139318243) 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, 4097573 + ... + 4097606.

It is an arithmetic number, because the mean of its divisors is an integer number (36878310).

Almost surely, 2^139318043 is an apocalyptic number.

139318043 is a deficient number, since it is larger than the sum of its proper divisors (8195197).

139318043 is an equidigital number, since it uses as much as digits as its factorization.

139318043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8195196.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 139318043 is about 11803.3064435352. The cubic root of 139318043 is about 518.4049285301.

The spelling of 139318043 in words is "one hundred thirty-nine million, three hundred eighteen thousand, forty-three".