139603780 has 12 divisors (see below), whose sum is σ = 293167980. Its totient is φ = 55841504.

The previous prime is 139603769. The next prime is 139603781. The reversal of 139603780 is 87306931.

It can be written as a sum of positive squares in 2 ways, for example, as 111471364 + 28132416 = 10558^2 + 5304^2 .

It is not an unprimeable number, because it can be changed into a prime (139603781) 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 3 ways as a sum of consecutive naturals, for example, 3490075 + ... + 3490114.

It is an arithmetic number, because the mean of its divisors is an integer number (24430665).

Almost surely, 2^139603780 is an apocalyptic number.

139603780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139603780 is an abundant number, since it is smaller than the sum of its proper divisors (153564200).

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

139603780 is a wasteful number, since it uses less digits than its factorization.

139603780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6980198 (or 6980196 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 139603780 is about 11815.4043519467. The cubic root of 139603780 is about 518.7590973389.

The spelling of 139603780 in words is "one hundred thirty-nine million, six hundred three thousand, seven hundred eighty".