139236383 has 8 divisors (see below), whose sum is σ = 163578576. Its totient is φ = 116841600.

The previous prime is 139236379. The next prime is 139236413. The reversal of 139236383 is 383632931.

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 139236383 - 2² = 139236379 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139236683) 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, 486698 + ... + 486983.

It is an arithmetic number, because the mean of its divisors is an integer number (20447322).

Almost surely, 2^139236383 is an apocalyptic number.

139236383 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

139236383 is a deficient number, since it is larger than the sum of its proper divisors (24342193).

139236383 is a wasteful number, since it uses less digits than its factorization.

139236383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973705.

The product of its digits is 69984, while the sum is 38.

The square root of 139236383 is about 11799.8467362928. The cubic root of 139236383 is about 518.3036226277.

The spelling of 139236383 in words is "one hundred thirty-nine million, two hundred thirty-six thousand, three hundred eighty-three".