139041000 has 192 divisors, whose sum is σ = 537338880. Its totient is φ = 31766400.

The previous prime is 139040903. The next prime is 139041073. The reversal of 139041000 is 140931.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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, 61897 + ... + 64103.

It is an arithmetic number, because the mean of its divisors is an integer number (2798640).

Almost surely, 2^139041000 is an apocalyptic number.

139041000 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 139041000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268669440).

139041000 is an abundant number, since it is smaller than the sum of its proper divisors (398297880).

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

139041000 is a wasteful number, since it uses less digits than its factorization.

139041000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2241 (or 2224 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 139041000 is about 11791.5647816564. The cubic root of 139041000 is about 518.0610731845.

Adding to 139041000 its reverse (140931), we get a palindrome (139181931).

The spelling of 139041000 in words is "one hundred thirty-nine million, forty-one thousand".