45220857 has 8 divisors (see below), whose sum is σ = 65775840. Its totient is φ = 27406560.

The previous prime is 45220843. The next prime is 45220871. The reversal of 45220857 is 75802254.

45220857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (45220843) and next prime (45220871).

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

It is not a de Polignac number, because 45220857 - 2⁴ = 45220841 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 1370329 = 45220857 / (4 + 5 + 2 + 2 + 0 + 8 + 5 + 7).

It is not an unprimeable number, because it can be changed into a prime (45220837) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 685132 + ... + 685197.

It is an arithmetic number, because the mean of its divisors is an integer number (8221980).

Almost surely, 2^45220857 is an apocalyptic number.

It is an amenable number.

45220857 is a deficient number, since it is larger than the sum of its proper divisors (20554983).

45220857 is a wasteful number, since it uses less digits than its factorization.

45220857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370343.

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 45220857 is about 6724.6454925148. The cubic root of 45220857 is about 356.2702809014.

The spelling of 45220857 in words is "forty-five million, two hundred twenty thousand, eight hundred fifty-seven".