139493008 has 10 divisors (see below), whose sum is σ = 270267734. Its totient is φ = 69746496.

The previous prime is 139492981. The next prime is 139493017. The reversal of 139493008 is 800394931.

139493008 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 79709184 + 59783824 = 8928^2 + 7732^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4359141 + ... + 4359172.

Almost surely, 2^139493008 is an apocalyptic number.

It is an amenable number.

139493008 is a deficient number, since it is larger than the sum of its proper divisors (130774726).

139493008 is an equidigital number, since it uses as much as digits as its factorization.

139493008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8718321 (or 8718315 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 139493008 is about 11810.7158123460. The cubic root of 139493008 is about 518.6218537099.

The spelling of 139493008 in words is "one hundred thirty-nine million, four hundred ninety-three thousand, eight".