454808661 has 4 divisors (see below), whose sum is σ = 606411552. Its totient is φ = 303205772.

The previous prime is 454808659. The next prime is 454808671. The reversal of 454808661 is 166808454.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 454808661 - 2¹ = 454808659 is a prime.

It is a super-2 number, since 2×454808661² = 413701836241225842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454808671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75801441 + ... + 75801446.

It is an arithmetic number, because the mean of its divisors is an integer number (151602888).

Almost surely, 2^454808661 is an apocalyptic number.

It is an amenable number.

454808661 is a deficient number, since it is larger than the sum of its proper divisors (151602891).

454808661 is a wasteful number, since it uses less digits than its factorization.

454808661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151602890.

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 454808661 is about 21326.2434807446. The cubic root of 454808661 is about 769.0293391088.

The spelling of 454808661 in words is "four hundred fifty-four million, eight hundred eight thousand, six hundred sixty-one".