139663330 has 32 divisors (see below), whose sum is σ = 267214464. Its totient is φ = 52375296.

The previous prime is 139663327. The next prime is 139663331. The reversal of 139663330 is 33366931.

It is a happy number.

139663330 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (139663331) 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 15 ways as a sum of consecutive naturals, for example, 46659 + ... + 49561.

It is an arithmetic number, because the mean of its divisors is an integer number (8350452).

Almost surely, 2^139663330 is an apocalyptic number.

139663330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139663330 is a deficient number, since it is larger than the sum of its proper divisors (127551134).

139663330 is a wasteful number, since it uses less digits than its factorization.

139663330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3210.

The product of its (nonzero) digits is 26244, while the sum is 34.

The square root of 139663330 is about 11817.9240985886. The cubic root of 139663330 is about 518.8328482378.

The spelling of 139663330 in words is "one hundred thirty-nine million, six hundred sixty-three thousand, three hundred thirty".