420753133 has 2 divisors, whose sum is σ = 420753134. Its totient is φ = 420753132.

The previous prime is 420753097. The next prime is 420753163. The reversal of 420753133 is 331357024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 418898089 + 1855044 = 20467^2 + 1362^2 .

It is a cyclic number.

It is not a de Polignac number, because 420753133 - 2¹³ = 420744941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420753163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210376566 + 210376567.

It is an arithmetic number, because the mean of its divisors is an integer number (210376567).

Almost surely, 2^420753133 is an apocalyptic number.

It is an amenable number.

420753133 is a deficient number, since it is larger than the sum of its proper divisors (1).

420753133 is an equidigital number, since it uses as much as digits as its factorization.

420753133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 420753133 is about 20512.2678658407. The cubic root of 420753133 is about 749.3345997572.

The spelling of 420753133 in words is "four hundred twenty million, seven hundred fifty-three thousand, one hundred thirty-three".