45080281 has 4 divisors (see below), whose sum is σ = 45819364. Its totient is φ = 44341200.

The previous prime is 45080267. The next prime is 45080291. The reversal of 45080281 is 18208054.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9272025 + 35808256 = 3045^2 + 5984^2 .

It is a cyclic number.

It is not a de Polignac number, because 45080281 - 2¹⁹ = 44555993 is a prime.

It is a super-2 number, since 2×45080281² = 4064463470077922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45080221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369450 + ... + 369571.

It is an arithmetic number, because the mean of its divisors is an integer number (11454841).

Almost surely, 2^45080281 is an apocalyptic number.

It is an amenable number.

45080281 is a deficient number, since it is larger than the sum of its proper divisors (739083).

45080281 is an equidigital number, since it uses as much as digits as its factorization.

45080281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739082.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 45080281 is about 6714.1850585160. The cubic root of 45080281 is about 355.9007240118.

The spelling of 45080281 in words is "forty-five million, eighty thousand, two hundred eighty-one".