139026900 has 144 divisors (see below), whose sum is σ = 419973120. Its totient is φ = 35481600.

The previous prime is 139026887. The next prime is 139026907. The reversal of 139026900 is 9620931.

It is a super-2 number, since 2×139026900² = 38656957847220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139026907) 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 47 ways as a sum of consecutive naturals, for example, 1094637 + ... + 1094763.

It is an arithmetic number, because the mean of its divisors is an integer number (2916480).

Almost surely, 2^139026900 is an apocalyptic number.

139026900 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 139026900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209986560).

139026900 is an abundant number, since it is smaller than the sum of its proper divisors (280946220).

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

139026900 is a wasteful number, since it uses less digits than its factorization.

139026900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 139026900 is about 11790.9668814733. The cubic root of 139026900 is about 518.0435605849.

It can be divided in two parts, 13902 and 6900, that added together give a palindrome (20802).

The spelling of 139026900 in words is "one hundred thirty-nine million, twenty-six thousand, nine hundred".