45427257 has 16 divisors (see below), whose sum is σ = 67449280. Its totient is φ = 30217536.

The previous prime is 45427237. The next prime is 45427259. The reversal of 45427257 is 75272454.

It is a happy number.

45427257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 45427257 - 2¹⁴ = 45410873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45427259) 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 15 ways as a sum of consecutive naturals, for example, 12513 + ... + 15729.

It is an arithmetic number, because the mean of its divisors is an integer number (4215580).

Almost surely, 2^45427257 is an apocalyptic number.

It is an amenable number.

45427257 is a deficient number, since it is larger than the sum of its proper divisors (22022023).

45427257 is a wasteful number, since it uses less digits than its factorization.

45427257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3749 (or 3743 counting only the distinct ones).

The product of its digits is 78400, while the sum is 36.

The square root of 45427257 is about 6739.9745548481. The cubic root of 45427257 is about 356.8114957092.

The spelling of 45427257 in words is "forty-five million, four hundred twenty-seven thousand, two hundred fifty-seven".