138302899 has 8 divisors (see below), whose sum is σ = 158257760. Its totient is φ = 118397376.

The previous prime is 138302897. The next prime is 138302951. The reversal of 138302899 is 998203831.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 138302899 - 2¹ = 138302897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138302893) 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, 6114 + ... + 17719.

It is an arithmetic number, because the mean of its divisors is an integer number (19782220).

Almost surely, 2^138302899 is an apocalyptic number.

138302899 is a deficient number, since it is larger than the sum of its proper divisors (19954861).

138302899 is an equidigital number, since it uses as much as digits as its factorization.

138302899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24669.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 138302899 is about 11760.2252954610. The cubic root of 138302899 is about 517.1427348902.

The spelling of 138302899 in words is "one hundred thirty-eight million, three hundred two thousand, eight hundred ninety-nine".