45747281 has 8 divisors (see below), whose sum is σ = 47106624. Its totient is φ = 44394480.

The previous prime is 45747277. The next prime is 45747301. The reversal of 45747281 is 18274754.

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 45747281 - 2² = 45747277 is a prime.

It is a super-2 number, since 2×45747281² = 4185627437785922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45747211) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 14996 + ... + 17786.

It is an arithmetic number, because the mean of its divisors is an integer number (5888328).

Almost surely, 2^45747281 is an apocalyptic number.

It is an amenable number.

45747281 is a deficient number, since it is larger than the sum of its proper divisors (1359343).

45747281 is a wasteful number, since it uses less digits than its factorization.

45747281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3271.

The product of its digits is 62720, while the sum is 38.

The square root of 45747281 is about 6763.6736319843. The cubic root of 45747281 is about 357.6474192740.

The spelling of 45747281 in words is "forty-five million, seven hundred forty-seven thousand, two hundred eighty-one".