451052213 has 2 divisors, whose sum is σ = 451052214. Its totient is φ = 451052212.

The previous prime is 451052209. The next prime is 451052221. The reversal of 451052213 is 312250154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 390181009 + 60871204 = 19753^2 + 7802^2 .

It is a cyclic number.

It is not a de Polignac number, because 451052213 - 2² = 451052209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451052293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225526106 + 225526107.

It is an arithmetic number, because the mean of its divisors is an integer number (225526107).

Almost surely, 2^451052213 is an apocalyptic number.

It is an amenable number.

451052213 is a deficient number, since it is larger than the sum of its proper divisors (1).

451052213 is an equidigital number, since it uses as much as digits as its factorization.

451052213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 451052213 is about 21237.9898530911. The cubic root of 451052213 is about 766.9062420986.

The spelling of 451052213 in words is "four hundred fifty-one million, fifty-two thousand, two hundred thirteen".