139311433 has 8 divisors (see below), whose sum is σ = 142581600. Its totient is φ = 136079328.

The previous prime is 139311353. The next prime is 139311451. The reversal of 139311433 is 334113931.

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 139311433 - 2⁹ = 139310921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139317433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2043 + ... + 16816.

It is an arithmetic number, because the mean of its divisors is an integer number (17822700).

Almost surely, 2^139311433 is an apocalyptic number.

It is an amenable number.

139311433 is a deficient number, since it is larger than the sum of its proper divisors (3270167).

139311433 is an equidigital number, since it uses as much as digits as its factorization.

139311433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19031.

The product of its digits is 2916, while the sum is 28.

The square root of 139311433 is about 11803.0264339279. The cubic root of 139311433 is about 518.3967297577.

The spelling of 139311433 in words is "one hundred thirty-nine million, three hundred eleven thousand, four hundred thirty-three".