421453033 has 2 divisors, whose sum is σ = 421453034. Its totient is φ = 421453032.

The previous prime is 421452953. The next prime is 421453061. The reversal of 421453033 is 330354124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 391564944 + 29888089 = 19788^2 + 5467^2 .

It is a cyclic number.

It is not a de Polignac number, because 421453033 - 2²⁵ = 387898601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421452989 and 421453007.

It is not a weakly prime, because it can be changed into another prime (421453093) 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, 210726516 + 210726517.

It is an arithmetic number, because the mean of its divisors is an integer number (210726517).

Almost surely, 2^421453033 is an apocalyptic number.

It is an amenable number.

421453033 is a deficient number, since it is larger than the sum of its proper divisors (1).

421453033 is an equidigital number, since it uses as much as digits as its factorization.

421453033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 421453033 is about 20529.3212990591. The cubic root of 421453033 is about 749.7498620654.

The spelling of 421453033 in words is "four hundred twenty-one million, four hundred fifty-three thousand, thirty-three".