426565481 has 2 divisors, whose sum is σ = 426565482. Its totient is φ = 426565480.

The previous prime is 426565463. The next prime is 426565493. The reversal of 426565481 is 184565624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 395651881 + 30913600 = 19891^2 + 5560^2 .

It is a cyclic number.

It is not a de Polignac number, because 426565481 - 2⁶ = 426565417 is a prime.

It is a super-2 number, since 2×426565481² = 363916219161522722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (426568481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213282740 + 213282741.

It is an arithmetic number, because the mean of its divisors is an integer number (213282741).

Almost surely, 2^426565481 is an apocalyptic number.

It is an amenable number.

426565481 is a deficient number, since it is larger than the sum of its proper divisors (1).

426565481 is an equidigital number, since it uses as much as digits as its factorization.

426565481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 230400, while the sum is 41.

The square root of 426565481 is about 20653.4617195278. The cubic root of 426565481 is about 752.7693063010.

The spelling of 426565481 in words is "four hundred twenty-six million, five hundred sixty-five thousand, four hundred eighty-one".