138768050 has 24 divisors (see below), whose sum is σ = 258715956. Its totient is φ = 55376640.

The previous prime is 138768037. The next prime is 138768053. The reversal of 138768050 is 50867831.

It can be written as a sum of positive squares in 6 ways, for example, as 108638929 + 30129121 = 10423^2 + 5489^2 .

It is a junction number, because it is equal to n+sod(n) for n = 138767995 and 138768013.

It is not an unprimeable number, because it can be changed into a prime (138768053) 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 11 ways as a sum of consecutive naturals, for example, 19814 + ... + 25886.

Almost surely, 2^138768050 is an apocalyptic number.

138768050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138768050 is a deficient number, since it is larger than the sum of its proper divisors (119947906).

138768050 is a wasteful number, since it uses less digits than its factorization.

138768050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6542 (or 6537 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 138768050 is about 11779.9851443030. The cubic root of 138768050 is about 517.7218509381.

The spelling of 138768050 in words is "one hundred thirty-eight million, seven hundred sixty-eight thousand, fifty".