426640153 has 2 divisors, whose sum is σ = 426640154. Its totient is φ = 426640152.

The previous prime is 426640139. The next prime is 426640157. The reversal of 426640153 is 351046624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 318729609 + 107910544 = 17853^2 + 10388^2 .

It is a cyclic number.

It is not a de Polignac number, because 426640153 - 2¹⁷ = 426509081 is a prime.

It is not a weakly prime, because it can be changed into another prime (426640157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213320076 + 213320077.

It is an arithmetic number, because the mean of its divisors is an integer number (213320077).

Almost surely, 2^426640153 is an apocalyptic number.

It is an amenable number.

426640153 is a deficient number, since it is larger than the sum of its proper divisors (1).

426640153 is an equidigital number, since it uses as much as digits as its factorization.

426640153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 426640153 is about 20655.2693761180. The cubic root of 426640153 is about 752.8132288346.

Adding to 426640153 its reverse (351046624), we get a palindrome (777686777).

The spelling of 426640153 in words is "four hundred twenty-six million, six hundred forty thousand, one hundred fifty-three".