138760463 has 4 divisors (see below), whose sum is σ = 138793248. Its totient is φ = 138727680.

The previous prime is 138760459. The next prime is 138760469. The reversal of 138760463 is 364067831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 138760463 - 2² = 138760459 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138760469) 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, 8903 + ... + 18888.

It is an arithmetic number, because the mean of its divisors is an integer number (34698312).

Almost surely, 2^138760463 is an apocalyptic number.

138760463 is a deficient number, since it is larger than the sum of its proper divisors (32785).

138760463 is an equidigital number, since it uses as much as digits as its factorization.

138760463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32784.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 138760463 is about 11779.6631106327. The cubic root of 138760463 is about 517.7124154634.

The spelling of 138760463 in words is "one hundred thirty-eight million, seven hundred sixty thousand, four hundred sixty-three".