208231039 has 8 divisors (see below), whose sum is σ = 209784960. Its totient is φ = 206683416.

The previous prime is 208231031. The next prime is 208231043. The reversal of 208231039 is 930132802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 208231039 - 2³ = 208231031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 208230998 and 208231016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208231031) 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 7 ways as a sum of consecutive naturals, for example, 79452 + ... + 82030.

It is an arithmetic number, because the mean of its divisors is an integer number (26223120).

Almost surely, 2^208231039 is an apocalyptic number.

208231039 is a deficient number, since it is larger than the sum of its proper divisors (1553921).

208231039 is a wasteful number, since it uses less digits than its factorization.

208231039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3149.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 208231039 is about 14430.2127149949. The cubic root of 208231039 is about 592.7185081891.

The spelling of 208231039 in words is "two hundred eight million, two hundred thirty-one thousand, thirty-nine".