139492800 has 168 divisors, whose sum is σ = 508660400. Its totient is φ = 37186560.

The previous prime is 139492799. The next prime is 139492807. The reversal of 139492800 is 8294931.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139492807) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 41586 + ... + 44814.

Almost surely, 2^139492800 is an apocalyptic number.

139492800 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 139492800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254330200).

139492800 is an abundant number, since it is smaller than the sum of its proper divisors (369167600).

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

139492800 is a wasteful number, since it uses less digits than its factorization.

139492800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3260 (or 3239 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 139492800 is about 11810.7070067799. The cubic root of 139492800 is about 518.6215959350.

The spelling of 139492800 in words is "one hundred thirty-nine million, four hundred ninety-two thousand, eight hundred".