424651481 has 2 divisors, whose sum is σ = 424651482. Its totient is φ = 424651480.

The previous prime is 424651433. The next prime is 424651499. The reversal of 424651481 is 184156424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 368025856 + 56625625 = 19184^2 + 7525^2 .

It is a cyclic number.

It is not a de Polignac number, because 424651481 - 2²⁶ = 357542617 is a prime.

It is a super-2 number, since 2×424651481² = 360657760630986722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (424651421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212325740 + 212325741.

It is an arithmetic number, because the mean of its divisors is an integer number (212325741).

Almost surely, 2^424651481 is an apocalyptic number.

It is an amenable number.

424651481 is a deficient number, since it is larger than the sum of its proper divisors (1).

424651481 is an equidigital number, since it uses as much as digits as its factorization.

424651481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30720, while the sum is 35.

The square root of 424651481 is about 20607.0735671031. The cubic root of 424651481 is about 751.6417257673.

The spelling of 424651481 in words is "four hundred twenty-four million, six hundred fifty-one thousand, four hundred eighty-one".