139663360 has 96 divisors (see below), whose sum is σ = 350269920. Its totient is φ = 53346304.

The previous prime is 139663331. The next prime is 139663369. The reversal of 139663360 is 63366931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139663369) 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, 235224 + ... + 235816.

It is an arithmetic number, because the mean of its divisors is an integer number (3648645).

Almost surely, 2^139663360 is an apocalyptic number.

139663360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139663360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175134960).

139663360 is an abundant number, since it is smaller than the sum of its proper divisors (210606560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139663360 is an equidigital number, since it uses as much as digits as its factorization.

139663360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643 (or 623 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 37.

The square root of 139663360 is about 11817.9253678469. The cubic root of 139663360 is about 518.8328853866.

The spelling of 139663360 in words is "one hundred thirty-nine million, six hundred sixty-three thousand, three hundred sixty".