138663067 has 18 divisors (see below), whose sum is σ = 154152068. Its totient is φ = 124694592.

The previous prime is 138663061. The next prime is 138663127. The reversal of 138663067 is 760366831.

It is not a de Polignac number, because 138663067 - 2¹⁹ = 138138779 is a prime.

It is a super-2 number, since 2×138663067² = 38454892299692978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138663061) 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 17 ways as a sum of consecutive naturals, for example, 152428 + ... + 153334.

Almost surely, 2^138663067 is an apocalyptic number.

138663067 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

138663067 is a deficient number, since it is larger than the sum of its proper divisors (15489001).

138663067 is an equidigital number, since it uses as much as digits as its factorization.

138663067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987 (or 947 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 138663067 is about 11775.5283108657. The cubic root of 138663067 is about 517.5912596258.

The spelling of 138663067 in words is "one hundred thirty-eight million, six hundred sixty-three thousand, sixty-seven".