139923835 has 8 divisors (see below), whose sum is σ = 175209120. Its totient is φ = 107072064.

The previous prime is 139923829. The next prime is 139923853. The reversal of 139923835 is 538329931.

139923835 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 139923835 - 2³ = 139923827 is a prime.

It is a super-2 number, since 2×139923835² = 39157359202214450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 139923791 and 139923800.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 608250 + ... + 608479.

It is an arithmetic number, because the mean of its divisors is an integer number (21901140).

Almost surely, 2^139923835 is an apocalyptic number.

139923835 is a deficient number, since it is larger than the sum of its proper divisors (35285285).

139923835 is a wasteful number, since it uses less digits than its factorization.

139923835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216757.

The product of its digits is 174960, while the sum is 43.

The square root of 139923835 is about 11828.9405696368. The cubic root of 139923835 is about 519.1552296959.

The spelling of 139923835 in words is "one hundred thirty-nine million, nine hundred twenty-three thousand, eight hundred thirty-five".