139901100 has 72 divisors (see below), whose sum is σ = 409973760. Its totient is φ = 36828480.

The previous prime is 139901081. The next prime is 139901101. The reversal of 139901100 is 1109931.

It is not an unprimeable number, because it can be changed into a prime (139901101) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 20749 + ... + 26651.

It is an arithmetic number, because the mean of its divisors is an integer number (5694080).

Almost surely, 2^139901100 is an apocalyptic number.

139901100 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 139901100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204986880).

139901100 is an abundant number, since it is smaller than the sum of its proper divisors (270072660).

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

139901100 is a wasteful number, since it uses less digits than its factorization.

139901100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5999 (or 5992 counting only the distinct ones).

The product of its (nonzero) digits is 243, while the sum is 24.

The square root of 139901100 is about 11827.9795400567. The cubic root of 139901100 is about 519.1271105089.

The spelling of 139901100 in words is "one hundred thirty-nine million, nine hundred one thousand, one hundred".