45138318 has 8 divisors (see below), whose sum is σ = 90276648. Its totient is φ = 15046104.

The previous prime is 45138307. The next prime is 45138329. The reversal of 45138318 is 81383154.

It is an interprime number because it is at equal distance from previous prime (45138307) and next prime (45138329).

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

45138318 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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, 3761521 + ... + 3761532.

It is an arithmetic number, because the mean of its divisors is an integer number (11284581).

Almost surely, 2^45138318 is an apocalyptic number.

45138318 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

45138318 is a wasteful number, since it uses less digits than its factorization.

45138318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7523058.

The product of its digits is 11520, while the sum is 33.

The square root of 45138318 is about 6718.5056374167. The cubic root of 45138318 is about 356.0533890808.

The spelling of 45138318 in words is "forty-five million, one hundred thirty-eight thousand, three hundred eighteen".