138360999 has 8 divisors (see below), whose sum is σ = 210835840. Its totient is φ = 79063416.

The previous prime is 138360991. The next prime is 138361007. The reversal of 138360999 is 999063831.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (138360991) and next prime (138361007).

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

It is not a de Polignac number, because 138360999 - 2³ = 138360991 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 (138360991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3294289 + ... + 3294330.

It is an arithmetic number, because the mean of its divisors is an integer number (26354480).

Almost surely, 2^138360999 is an apocalyptic number.

138360999 is a deficient number, since it is larger than the sum of its proper divisors (72474841).

138360999 is an equidigital number, since it uses as much as digits as its factorization.

138360999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6588629.

The product of its (nonzero) digits is 314928, while the sum is 48.

The square root of 138360999 is about 11762.6952268602. The cubic root of 138360999 is about 517.2151406670.

The spelling of 138360999 in words is "one hundred thirty-eight million, three hundred sixty thousand, nine hundred ninety-nine".