454155623 has 4 divisors (see below), whose sum is σ = 454851768. Its totient is φ = 453459480.

The previous prime is 454155619. The next prime is 454155641. The reversal of 454155623 is 326551454.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 454155623 - 2² = 454155619 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 (454155643) 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 3 ways as a sum of consecutive naturals, for example, 347093 + ... + 348398.

It is an arithmetic number, because the mean of its divisors is an integer number (113712942).

Almost surely, 2^454155623 is an apocalyptic number.

454155623 is a deficient number, since it is larger than the sum of its proper divisors (696145).

454155623 is an equidigital number, since it uses as much as digits as its factorization.

454155623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696144.

The product of its digits is 72000, while the sum is 35.

The square root of 454155623 is about 21310.9273144084. The cubic root of 454155623 is about 768.6610919895.

The spelling of 454155623 in words is "four hundred fifty-four million, one hundred fifty-five thousand, six hundred twenty-three".