138327510 has 16 divisors (see below), whose sum is σ = 331986096. Its totient is φ = 36887328.

The previous prime is 138327503. The next prime is 138327523. The reversal of 138327510 is 15723831.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 4610917 = 138327510 / (1 + 3 + 8 + 3 + 2 + 7 + 5 + 1 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2305429 + ... + 2305488.

It is an arithmetic number, because the mean of its divisors is an integer number (20749131).

Almost surely, 2^138327510 is an apocalyptic number.

138327510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138327510 is an abundant number, since it is smaller than the sum of its proper divisors (193658586).

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

138327510 is a wasteful number, since it uses less digits than its factorization.

138327510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4610927.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 138327510 is about 11761.2716149233. The cubic root of 138327510 is about 517.1734082529.

The spelling of 138327510 in words is "one hundred thirty-eight million, three hundred twenty-seven thousand, five hundred ten".