139803307 has 8 divisors (see below), whose sum is σ = 160756736. Its totient is φ = 119095272.

The previous prime is 139803299. The next prime is 139803329. The reversal of 139803307 is 703308931.

139803307 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 139803307 - 2³ = 139803299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139800307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60123 + ... + 62404.

It is an arithmetic number, because the mean of its divisors is an integer number (20094592).

Almost surely, 2^139803307 is an apocalyptic number.

139803307 is the 6827-th hex number.

139803307 is a deficient number, since it is larger than the sum of its proper divisors (20953429).

139803307 is a wasteful number, since it uses less digits than its factorization.

139803307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122697.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 139803307 is about 11823.8448484408. The cubic root of 139803307 is about 519.0061230612.

The spelling of 139803307 in words is "one hundred thirty-nine million, eight hundred three thousand, three hundred seven".