451473161 has 2 divisors, whose sum is σ = 451473162. Its totient is φ = 451473160.

The previous prime is 451473137. The next prime is 451473163. The reversal of 451473161 is 161374154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 254211136 + 197262025 = 15944^2 + 14045^2 .

It is a cyclic number.

It is not a de Polignac number, because 451473161 - 2¹⁸ = 451211017 is a prime.

Together with 451473163, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (451473163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225736580 + 225736581.

It is an arithmetic number, because the mean of its divisors is an integer number (225736581).

Almost surely, 2^451473161 is an apocalyptic number.

It is an amenable number.

451473161 is a deficient number, since it is larger than the sum of its proper divisors (1).

451473161 is an equidigital number, since it uses as much as digits as its factorization.

451473161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 32.

The square root of 451473161 is about 21247.8978019003. The cubic root of 451473161 is about 767.1447416665.

The spelling of 451473161 in words is "four hundred fifty-one million, four hundred seventy-three thousand, one hundred sixty-one".