454495661 has 4 divisors (see below), whose sum is σ = 458743392. Its totient is φ = 450247932.

The previous prime is 454495621. The next prime is 454495669. The reversal of 454495661 is 166594454.

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 454495661 - 2⁶ = 454495597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454495669) 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, 2123705 + ... + 2123918.

It is an arithmetic number, because the mean of its divisors is an integer number (114685848).

Almost surely, 2^454495661 is an apocalyptic number.

It is an amenable number.

454495661 is a deficient number, since it is larger than the sum of its proper divisors (4247731).

454495661 is a wasteful number, since it uses less digits than its factorization.

454495661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4247730.

The product of its digits is 518400, while the sum is 44.

The square root of 454495661 is about 21318.9038414267. The cubic root of 454495661 is about 768.8528829101.

The spelling of 454495661 in words is "four hundred fifty-four million, four hundred ninety-five thousand, six hundred sixty-one".