455121481 has 2 divisors, whose sum is σ = 455121482. Its totient is φ = 455121480.

The previous prime is 455121479. The next prime is 455121517. The reversal of 455121481 is 184121554.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 446941881 + 8179600 = 21141^2 + 2860^2 .

It is a cyclic number.

It is not a de Polignac number, because 455121481 - 2¹ = 455121479 is a prime.

It is a super-2 number, since 2×455121481² = 414271124935266722, which contains 22 as substring.

Together with 455121479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (455121461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227560740 + 227560741.

It is an arithmetic number, because the mean of its divisors is an integer number (227560741).

Almost surely, 2^455121481 is an apocalyptic number.

It is an amenable number.

455121481 is a deficient number, since it is larger than the sum of its proper divisors (1).

455121481 is an equidigital number, since it uses as much as digits as its factorization.

455121481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6400, while the sum is 31.

The square root of 455121481 is about 21333.5763762197. The cubic root of 455121481 is about 769.2056129612.

The spelling of 455121481 in words is "four hundred fifty-five million, one hundred twenty-one thousand, four hundred eighty-one".