139463683 has 8 divisors (see below), whose sum is σ = 140423360. Its totient is φ = 138507840.

The previous prime is 139463659. The next prime is 139463689. The reversal of 139463683 is 386364931.

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 139463683 - 2²¹ = 137366531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139463689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112678 + ... + 113908.

It is an arithmetic number, because the mean of its divisors is an integer number (17552920).

Almost surely, 2^139463683 is an apocalyptic number.

139463683 is a deficient number, since it is larger than the sum of its proper divisors (959677).

139463683 is a wasteful number, since it uses less digits than its factorization.

139463683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1917.

The product of its digits is 279936, while the sum is 43.

The square root of 139463683 is about 11809.4742897387. The cubic root of 139463683 is about 518.5855086344.

The spelling of 139463683 in words is "one hundred thirty-nine million, four hundred sixty-three thousand, six hundred eighty-three".