139258000 has 200 divisors, whose sum is σ = 406369080. Its totient is φ = 46099200.

The previous prime is 139257997. The next prime is 139258001. The reversal of 139258000 is 852931.

It can be written as a sum of positive squares in 4 ways, for example, as 5531904 + 133726096 = 2352^2 + 11564^2 .

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 139258000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139258001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4801986 + ... + 4802014.

Almost surely, 2^139258000 is an apocalyptic number.

139258000 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 139258000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203184540).

139258000 is an abundant number, since it is smaller than the sum of its proper divisors (267111080).

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

139258000 is an frugal number, since it uses more digits than its factorization.

139258000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80 (or 43 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 139258000 is about 11800.7626872164. The cubic root of 139258000 is about 518.3304441366.

The spelling of 139258000 in words is "one hundred thirty-nine million, two hundred fifty-eight thousand".