139029663 has 8 divisors (see below), whose sum is σ = 187013808. Its totient is φ = 91865984.

The previous prime is 139029589. The next prime is 139029677. The reversal of 139029663 is 366920931.

139029663 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 139029663 - 2²⁰ = 137981087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139029563) 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, 204720 + ... + 205397.

It is an arithmetic number, because the mean of its divisors is an integer number (23376726).

Almost surely, 2^139029663 is an apocalyptic number.

139029663 is a deficient number, since it is larger than the sum of its proper divisors (47984145).

139029663 is a wasteful number, since it uses less digits than its factorization.

139029663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410233.

The product of its (nonzero) digits is 52488, while the sum is 39.

The square root of 139029663 is about 11791.0840468551. The cubic root of 139029663 is about 518.0469924025.

The spelling of 139029663 in words is "one hundred thirty-nine million, twenty-nine thousand, six hundred sixty-three".