139089600 has 252 divisors, whose sum is σ = 533101296. Its totient is φ = 34191360.

The previous prime is 139089581. The next prime is 139089607. The reversal of 139089600 is 6980931.

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

It is not an unprimeable number, because it can be changed into a prime (139089607) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 186829 + ... + 187571.

Almost surely, 2^139089600 is an apocalyptic number.

139089600 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 139089600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266550648).

139089600 is an abundant number, since it is smaller than the sum of its proper divisors (394011696).

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

139089600 is a wasteful number, since it uses less digits than its factorization.

139089600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784 (or 766 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 139089600 is about 11793.6253967981. The cubic root of 139089600 is about 518.1214266898.

The spelling of 139089600 in words is "one hundred thirty-nine million, eighty-nine thousand, six hundred".