139800132 has 36 divisors (see below), whose sum is σ = 357362460. Its totient is φ = 46075392.

The previous prime is 139800121. The next prime is 139800139. The reversal of 139800132 is 231008931.

It can be written as a sum of positive squares in 2 ways, for example, as 82737216 + 57062916 = 9096^2 + 7554^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 139800096 and 139800105.

It is not an unprimeable number, because it can be changed into a prime (139800139) 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 11 ways as a sum of consecutive naturals, for example, 18613 + ... + 25020.

It is an arithmetic number, because the mean of its divisors is an integer number (9926735).

Almost surely, 2^139800132 is an apocalyptic number.

139800132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

139800132 is an abundant number, since it is smaller than the sum of its proper divisors (217562328).

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

139800132 is a wasteful number, since it uses less digits than its factorization.

139800132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43732 (or 43727 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 139800132 is about 11823.7105850913. The cubic root of 139800132 is about 519.0021940723.

The spelling of 139800132 in words is "one hundred thirty-nine million, eight hundred thousand, one hundred thirty-two".