45208281 has 8 divisors (see below), whose sum is σ = 61748064. Its totient is φ = 29403680.

The previous prime is 45208279. The next prime is 45208283. The reversal of 45208281 is 18280254.

It is an interprime number because it is at equal distance from previous prime (45208279) and next prime (45208283).

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 45208281 - 2¹ = 45208279 is a prime.

It is a super-2 number, since 2×45208281² = 4087577341949922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45208283) 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, 183651 + ... + 183896.

It is an arithmetic number, because the mean of its divisors is an integer number (7718508).

Almost surely, 2^45208281 is an apocalyptic number.

45208281 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

45208281 is a deficient number, since it is larger than the sum of its proper divisors (16539783).

45208281 is a wasteful number, since it uses less digits than its factorization.

45208281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367591.

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 45208281 is about 6723.7103596154. The cubic root of 45208281 is about 356.2372513751.

The spelling of 45208281 in words is "forty-five million, two hundred eight thousand, two hundred eighty-one".