452261021 has 2 divisors, whose sum is σ = 452261022. Its totient is φ = 452261020.

The previous prime is 452261011. The next prime is 452261059. The reversal of 452261021 is 120162254.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 369177796 + 83083225 = 19214^2 + 9115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-452261021 is a prime.

It is a super-2 number, since 2×452261021² = 409080062231924882, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (452261011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226130510 + 226130511.

It is an arithmetic number, because the mean of its divisors is an integer number (226130511).

Almost surely, 2^452261021 is an apocalyptic number.

It is an amenable number.

452261021 is a deficient number, since it is larger than the sum of its proper divisors (1).

452261021 is an equidigital number, since it uses as much as digits as its factorization.

452261021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 452261021 is about 21266.4294370259. The cubic root of 452261021 is about 767.5907271427.

The spelling of 452261021 in words is "four hundred fifty-two million, two hundred sixty-one thousand, twenty-one".