45138846 has 8 divisors (see below), whose sum is σ = 90277704. Its totient is φ = 15046280.

The previous prime is 45138817. The next prime is 45138869. The reversal of 45138846 is 64883154.

45138846 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

45138846 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3761565 + ... + 3761576.

It is an arithmetic number, because the mean of its divisors is an integer number (11284713).

Almost surely, 2^45138846 is an apocalyptic number.

45138846 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.

45138846 is a wasteful number, since it uses less digits than its factorization.

45138846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7523146.

The product of its digits is 92160, while the sum is 39.

The square root of 45138846 is about 6718.5449317542. The cubic root of 45138846 is about 356.0547773725.

The spelling of 45138846 in words is "forty-five million, one hundred thirty-eight thousand, eight hundred forty-six".