45086921 has 8 divisors (see below), whose sum is σ = 50385888. Its totient is φ = 39988000.

The previous prime is 45086903. The next prime is 45086929. The reversal of 45086921 is 12968054.

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 45086921 - 2¹⁰ = 45085897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45086929) 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, 49535 + ... + 50436.

It is an arithmetic number, because the mean of its divisors is an integer number (6298236).

Almost surely, 2^45086921 is an apocalyptic number.

45086921 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

45086921 is a deficient number, since it is larger than the sum of its proper divisors (5298967).

45086921 is a wasteful number, since it uses less digits than its factorization.

45086921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100023.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 45086921 is about 6714.6795158071. The cubic root of 45086921 is about 355.9181970232.

The spelling of 45086921 in words is "forty-five million, eighty-six thousand, nine hundred twenty-one".