139126680 has 384 divisors, whose sum is σ = 590976000. Its totient is φ = 28788480.

The previous prime is 139126679. The next prime is 139126699. The reversal of 139126680 is 86621931.

139126680 is a `hidden beast` number, since 1 + 391 + 266 + 8 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 582001 + ... + 582239.

It is an arithmetic number, because the mean of its divisors is an integer number (1539000).

Almost surely, 2^139126680 is an apocalyptic number.

139126680 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 139126680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295488000).

139126680 is an abundant number, since it is smaller than the sum of its proper divisors (451849320).

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

139126680 is a wasteful number, since it uses less digits than its factorization.

139126680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284 (or 267 counting only the distinct ones).

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

The square root of 139126680 is about 11795.1973277262. The cubic root of 139126680 is about 518.1674647246.

The spelling of 139126680 in words is "one hundred thirty-nine million, one hundred twenty-six thousand, six hundred eighty".