426661513 has 2 divisors, whose sum is σ = 426661514. Its totient is φ = 426661512.

The previous prime is 426661483. The next prime is 426661517. The reversal of 426661513 is 315166624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 237406464 + 189255049 = 15408^2 + 13757^2 .

It is a cyclic number.

It is not a de Polignac number, because 426661513 - 2¹³ = 426653321 is a prime.

It is not a weakly prime, because it can be changed into another prime (426661517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213330756 + 213330757.

It is an arithmetic number, because the mean of its divisors is an integer number (213330757).

Almost surely, 2^426661513 is an apocalyptic number.

It is an amenable number.

426661513 is a deficient number, since it is larger than the sum of its proper divisors (1).

426661513 is an equidigital number, since it uses as much as digits as its factorization.

426661513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 34.

The square root of 426661513 is about 20655.7864289889. The cubic root of 426661513 is about 752.8257919764.

The spelling of 426661513 in words is "four hundred twenty-six million, six hundred sixty-one thousand, five hundred thirteen".