138300064 has 24 divisors (see below), whose sum is σ = 311175648. Its totient is φ = 59271360.

The previous prime is 138300061. The next prime is 138300067. The reversal of 138300064 is 460003831.

It is an interprime number because it is at equal distance from previous prime (138300061) and next prime (138300067).

It is not an unprimeable number, because it can be changed into a prime (138300061) 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, 308482 + ... + 308929.

It is an arithmetic number, because the mean of its divisors is an integer number (12965652).

Almost surely, 2^138300064 is an apocalyptic number.

138300064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

138300064 is an abundant number, since it is smaller than the sum of its proper divisors (172875584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138300064 is an equidigital number, since it uses as much as digits as its factorization.

138300064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617428 (or 617420 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 138300064 is about 11760.1047614381. The cubic root of 138300064 is about 517.1392013184.

Adding to 138300064 its reverse (460003831), we get a palindrome (598303895).

The spelling of 138300064 in words is "one hundred thirty-eight million, three hundred thousand, sixty-four".