139488799 has 8 divisors (see below), whose sum is σ = 142376960. Its totient is φ = 136628856.

The previous prime is 139488781. The next prime is 139488821. The reversal of 139488799 is 997884931.

It is a happy number.

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 139488799 - 2²³ = 131100191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139488749) 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, 3082 + ... + 16984.

It is an arithmetic number, because the mean of its divisors is an integer number (17797120).

Almost surely, 2^139488799 is an apocalyptic number.

139488799 is a deficient number, since it is larger than the sum of its proper divisors (2888161).

139488799 is a wasteful number, since it uses less digits than its factorization.

139488799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14109.

The product of its digits is 3919104, while the sum is 58.

The square root of 139488799 is about 11810.5376253581. The cubic root of 139488799 is about 518.6166374357.

The spelling of 139488799 in words is "one hundred thirty-nine million, four hundred eighty-eight thousand, seven hundred ninety-nine".