139390133 has 8 divisors (see below), whose sum is σ = 143899008. Its totient is φ = 134938944.

The previous prime is 139390073. The next prime is 139390171. The reversal of 139390133 is 331093931.

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 139390133 - 2¹⁴ = 139373749 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 139390133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139330133) 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, 9485 + ... + 19202.

It is an arithmetic number, because the mean of its divisors is an integer number (17987376).

Almost surely, 2^139390133 is an apocalyptic number.

It is an amenable number.

139390133 is a deficient number, since it is larger than the sum of its proper divisors (4508875).

139390133 is a wasteful number, since it uses less digits than its factorization.

139390133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28843.

The product of its (nonzero) digits is 6561, while the sum is 32.

The square root of 139390133 is about 11806.3598539092. The cubic root of 139390133 is about 518.4943291713.

The spelling of 139390133 in words is "one hundred thirty-nine million, three hundred ninety thousand, one hundred thirty-three".