455211881 has 2 divisors, whose sum is σ = 455211882. Its totient is φ = 455211880.

The previous prime is 455211853. The next prime is 455211943. The reversal of 455211881 is 188112554.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 437437225 + 17774656 = 20915^2 + 4216^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-455211881 is a prime.

It is a super-2 number, since 2×455211881² = 414435713207116322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (455217881) 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, 227605940 + 227605941.

It is an arithmetic number, because the mean of its divisors is an integer number (227605941).

Almost surely, 2^455211881 is an apocalyptic number.

It is an amenable number.

455211881 is a deficient number, since it is larger than the sum of its proper divisors (1).

455211881 is an equidigital number, since it uses as much as digits as its factorization.

455211881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12800, while the sum is 35.

The square root of 455211881 is about 21335.6949968826. The cubic root of 455211881 is about 769.2565382539.

The spelling of 455211881 in words is "four hundred fifty-five million, two hundred eleven thousand, eight hundred eighty-one".