454937661 has 16 divisors (see below), whose sum is σ = 679950720. Its totient is φ = 300605760.

The previous prime is 454937657. The next prime is 454937669. The reversal of 454937661 is 166739454.

It is not a de Polignac number, because 454937661 - 2² = 454937657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454937669) 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 in 15 ways as a sum of consecutive naturals, for example, 71505 + ... + 77606.

It is an arithmetic number, because the mean of its divisors is an integer number (42496920).

Almost surely, 2^454937661 is an apocalyptic number.

It is an amenable number.

454937661 is a deficient number, since it is larger than the sum of its proper divisors (225013059).

454937661 is a wasteful number, since it uses less digits than its factorization.

454937661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149233 (or 149227 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 454937661 is about 21329.2677089487. The cubic root of 454937661 is about 769.1020403092.

The spelling of 454937661 in words is "four hundred fifty-four million, nine hundred thirty-seven thousand, six hundred sixty-one".