139793473 has 8 divisors (see below), whose sum is σ = 143801856. Its totient is φ = 135819600.

The previous prime is 139793447. The next prime is 139793483. The reversal of 139793473 is 374397931.

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 139793473 - 2¹³ = 139785281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139793483) 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, 298 + ... + 16723.

It is an arithmetic number, because the mean of its divisors is an integer number (17975232).

Almost surely, 2^139793473 is an apocalyptic number.

It is an amenable number.

139793473 is a deficient number, since it is larger than the sum of its proper divisors (4008383).

139793473 is a wasteful number, since it uses less digits than its factorization.

139793473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17255.

The product of its digits is 428652, while the sum is 46.

The square root of 139793473 is about 11823.4289865504. The cubic root of 139793473 is about 518.9939535210.

The spelling of 139793473 in words is "one hundred thirty-nine million, seven hundred ninety-three thousand, four hundred seventy-three".