45890281 has 2 divisors, whose sum is σ = 45890282. Its totient is φ = 45890280.

The previous prime is 45890167. The next prime is 45890287. The reversal of 45890281 is 18209854.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35105625 + 10784656 = 5925^2 + 3284^2 .

It is a cyclic number.

It is not a de Polignac number, because 45890281 - 2¹⁹ = 45365993 is a prime.

It is a super-2 number, since 2×45890281² = 4211835780517922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45890281.

It is not a weakly prime, because it can be changed into another prime (45890287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22945140 + 22945141.

It is an arithmetic number, because the mean of its divisors is an integer number (22945141).

Almost surely, 2^45890281 is an apocalyptic number.

It is an amenable number.

45890281 is a deficient number, since it is larger than the sum of its proper divisors (1).

45890281 is an equidigital number, since it uses as much as digits as its factorization.

45890281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 45890281 is about 6774.2365621522. The cubic root of 45890281 is about 358.0196846328.

The spelling of 45890281 in words is "forty-five million, eight hundred ninety thousand, two hundred eighty-one".