139328530 has 32 divisors (see below), whose sum is σ = 277354368. Its totient is φ = 49968000.

The previous prime is 139328461. The next prime is 139328533. The reversal of 139328530 is 35823931.

It is not an unprimeable number, because it can be changed into a prime (139328533) 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 15 ways as a sum of consecutive naturals, for example, 646 + ... + 16705.

It is an arithmetic number, because the mean of its divisors is an integer number (8667324).

Almost surely, 2^139328530 is an apocalyptic number.

139328530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139328530 is a deficient number, since it is larger than the sum of its proper divisors (138025838).

139328530 is a wasteful number, since it uses less digits than its factorization.

139328530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17442.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 139328530 is about 11803.7506751032. The cubic root of 139328530 is about 518.4179356419.

The spelling of 139328530 in words is "one hundred thirty-nine million, three hundred twenty-eight thousand, five hundred thirty".