139123200 has 120 divisors (see below), whose sum is σ = 459711648. Its totient is φ = 37089280.

The previous prime is 139123199. The next prime is 139123211. The reversal of 139123200 is 2321931.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36589 + ... + 40211.

Almost surely, 2^139123200 is an apocalyptic number.

139123200 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 139123200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229855824).

139123200 is an abundant number, since it is smaller than the sum of its proper divisors (320588448).

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

139123200 is an equidigital number, since it uses as much as digits as its factorization.

139123200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3654 (or 3633 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 139123200 is about 11795.0498091360. The cubic root of 139123200 is about 518.1631443507.

The spelling of 139123200 in words is "one hundred thirty-nine million, one hundred twenty-three thousand, two hundred".