139242800 has 60 divisors (see below), whose sum is σ = 337287936. Its totient is φ = 55238400.

The previous prime is 139242799. The next prime is 139242871. The reversal of 139242800 is 8242931.

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 in 11 ways as a sum of consecutive naturals, for example, 49430 + ... + 52170.

Almost surely, 2^139242800 is an apocalyptic number.

139242800 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 139242800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168643968).

139242800 is an abundant number, since it is smaller than the sum of its proper divisors (198045136).

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

139242800 is a wasteful number, since it uses less digits than its factorization.

139242800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2886 (or 2875 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 139242800 is about 11800.1186434713. The cubic root of 139242800 is about 518.3115848743.

The spelling of 139242800 in words is "one hundred thirty-nine million, two hundred forty-two thousand, eight hundred".