138765514 has 8 divisors (see below), whose sum is σ = 210169440. Its totient is φ = 68709036.

The previous prime is 138765457. The next prime is 138765521. The reversal of 138765514 is 415567831.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 336604 + ... + 337015.

It is an arithmetic number, because the mean of its divisors is an integer number (26271180).

Almost surely, 2^138765514 is an apocalyptic number.

138765514 is a deficient number, since it is larger than the sum of its proper divisors (71403926).

138765514 is a wasteful number, since it uses less digits than its factorization.

138765514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673724.

The product of its digits is 100800, while the sum is 40.

The square root of 138765514 is about 11779.8775036076. The cubic root of 138765514 is about 517.7186971127.

The spelling of 138765514 in words is "one hundred thirty-eight million, seven hundred sixty-five thousand, five hundred fourteen".