45298681 has 2 divisors, whose sum is σ = 45298682. Its totient is φ = 45298680.

The previous prime is 45298637. The next prime is 45298699. The reversal of 45298681 is 18689254.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40195600 + 5103081 = 6340^2 + 2259^2 .

It is a cyclic number.

It is not a de Polignac number, because 45298681 - 2¹¹ = 45296633 is a prime.

It is a super-2 number, since 2×45298681² = 4103941000679522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45298381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22649340 + 22649341.

It is an arithmetic number, because the mean of its divisors is an integer number (22649341).

Almost surely, 2^45298681 is an apocalyptic number.

It is an amenable number.

45298681 is a deficient number, since it is larger than the sum of its proper divisors (1).

45298681 is an equidigital number, since it uses as much as digits as its factorization.

45298681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 138240, while the sum is 43.

The square root of 45298681 is about 6730.4294810955. The cubic root of 45298681 is about 356.4745412796.

The spelling of 45298681 in words is "forty-five million, two hundred ninety-eight thousand, six hundred eighty-one".