139467983 has 8 divisors (see below), whose sum is σ = 147847680. Its totient is φ = 131107840.

The previous prime is 139467959. The next prime is 139468003. The reversal of 139467983 is 389764931.

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 139467983 - 2⁶ = 139467919 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 (139467953) 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, 11378 + ... + 20208.

It is an arithmetic number, because the mean of its divisors is an integer number (18480960).

Almost surely, 2^139467983 is an apocalyptic number.

139467983 is a deficient number, since it is larger than the sum of its proper divisors (8379697).

139467983 is an equidigital number, since it uses as much as digits as its factorization.

139467983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9777.

The product of its digits is 979776, while the sum is 50.

The square root of 139467983 is about 11809.6563455504. The cubic root of 139467983 is about 518.5908383248.

The spelling of 139467983 in words is "one hundred thirty-nine million, four hundred sixty-seven thousand, nine hundred eighty-three".