451256461 has 2 divisors, whose sum is σ = 451256462. Its totient is φ = 451256460.

The previous prime is 451256423. The next prime is 451256471. The reversal of 451256461 is 164652154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 424154025 + 27102436 = 20595^2 + 5206^2 .

It is a cyclic number.

It is not a de Polignac number, because 451256461 - 2²¹ = 449159309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451256471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225628230 + 225628231.

It is an arithmetic number, because the mean of its divisors is an integer number (225628231).

Almost surely, 2^451256461 is an apocalyptic number.

It is an amenable number.

451256461 is a deficient number, since it is larger than the sum of its proper divisors (1).

451256461 is an equidigital number, since it uses as much as digits as its factorization.

451256461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28800, while the sum is 34.

The square root of 451256461 is about 21242.7978618637. The cubic root of 451256461 is about 767.0219828962.

The spelling of 451256461 in words is "four hundred fifty-one million, two hundred fifty-six thousand, four hundred sixty-one".