45294481 has 2 divisors, whose sum is σ = 45294482. Its totient is φ = 45294480.

The previous prime is 45294467. The next prime is 45294493. The reversal of 45294481 is 18449254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36240400 + 9054081 = 6020^2 + 3009^2 .

It is a cyclic number.

It is not a de Polignac number, because 45294481 - 2⁵ = 45294449 is a prime.

It is a super-2 number, since 2×45294481² = 4103180018118722, 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 45294481.

It is not a weakly prime, because it can be changed into another prime (45294421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22647240 + 22647241.

It is an arithmetic number, because the mean of its divisors is an integer number (22647241).

Almost surely, 2^45294481 is an apocalyptic number.

45294481 is the 4257-th centered pentagonal number.

It is an amenable number.

45294481 is a deficient number, since it is larger than the sum of its proper divisors (1).

45294481 is an equidigital number, since it uses as much as digits as its factorization.

45294481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 37.

The square root of 45294481 is about 6730.1174581132. The cubic root of 45294481 is about 356.4635237450.

The spelling of 45294481 in words is "forty-five million, two hundred ninety-four thousand, four hundred eighty-one".