39140859 has 4 divisors (see below), whose sum is σ = 52187816. Its totient is φ = 26093904.

The previous prime is 39140839. The next prime is 39140863. The reversal of 39140859 is 95804193.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95804193 = 3 ⋅31934731.

It is not a de Polignac number, because 39140859 - 2⁸ = 39140603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39140839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6523474 + ... + 6523479.

It is an arithmetic number, because the mean of its divisors is an integer number (13046954).

Almost surely, 2^39140859 is an apocalyptic number.

39140859 is a deficient number, since it is larger than the sum of its proper divisors (13046957).

39140859 is a wasteful number, since it uses less digits than its factorization.

39140859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13046956.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 39140859 is about 6256.2655794012. The cubic root of 39140859 is about 339.5289295242.

The spelling of 39140859 in words is "thirty-nine million, one hundred forty thousand, eight hundred fifty-nine".