454155561 has 12 divisors (see below), whose sum is σ = 694591092. Its totient is φ = 284960256.

The previous prime is 454155529. The next prime is 454155563. The reversal of 454155561 is 165551454.

454155561 is a `hidden beast` number, since 4 + 5 + 41 + 55 + 561 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 304851600 + 149303961 = 17460^2 + 12219^2 .

It is not a de Polignac number, because 454155561 - 2⁵ = 454155529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (454155563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1484016 + ... + 1484321.

It is an arithmetic number, because the mean of its divisors is an integer number (57882591).

Almost surely, 2^454155561 is an apocalyptic number.

It is an amenable number.

454155561 is a deficient number, since it is larger than the sum of its proper divisors (240435531).

454155561 is a wasteful number, since it uses less digits than its factorization.

454155561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2968360 (or 2968357 counting only the distinct ones).

The product of its digits is 60000, while the sum is 36.

The square root of 454155561 is about 21310.9258597556. The cubic root of 454155561 is about 768.6610570111.

The spelling of 454155561 in words is "four hundred fifty-four million, one hundred fifty-five thousand, five hundred sixty-one".