138016850 has 12 divisors (see below), whose sum is σ = 256711434. Its totient is φ = 55206720.

The previous prime is 138016849. The next prime is 138016873. The reversal of 138016850 is 58610831.

It can be written as a sum of positive squares in 3 ways, for example, as 115842169 + 22174681 = 10763^2 + 4709^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1380119 + ... + 1380218.

Almost surely, 2^138016850 is an apocalyptic number.

138016850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138016850 is a deficient number, since it is larger than the sum of its proper divisors (118694584).

138016850 is a wasteful number, since it uses less digits than its factorization.

138016850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2760349 (or 2760344 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 138016850 is about 11748.0572862069. The cubic root of 138016850 is about 516.7859569625.

The spelling of 138016850 in words is "one hundred thirty-eight million, sixteen thousand, eight hundred fifty".