454981 has 6 divisors (see below), whose sum is σ = 472082. Its totient is φ = 438480.

The previous prime is 454973. The next prime is 454991. The reversal of 454981 is 189454.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 58081 + 396900 = 241^2 + 630^2 .

It is not a de Polignac number, because 454981 - 2³ = 454973 is a prime.

It is a super-2 number, since 2×454981² = 414015420722, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454921) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 571 + ... + 1111.

2⁴⁵⁴⁹⁸¹ is an apocalyptic number.

It is an amenable number.

454981 is a deficient number, since it is larger than the sum of its proper divisors (17101).

454981 is an equidigital number, since it uses as much as digits as its factorization.

454981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599 (or 570 counting only the distinct ones).

The product of its digits is 5760, while the sum is 31.

The square root of 454981 is about 674.5227942776. The cubic root of 454981 is about 76.9126462010.

The spelling of 454981 in words is "four hundred fifty-four thousand, nine hundred eighty-one".