454164491 has 8 divisors (see below), whose sum is σ = 497244144. Its totient is φ = 411383520.

The previous prime is 454164461. The next prime is 454164499. The reversal of 454164491 is 194461454.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 454164491 - 2²² = 449970187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (454164499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71480 + ... + 77573.

It is an arithmetic number, because the mean of its divisors is an integer number (62155518).

Almost surely, 2^454164491 is an apocalyptic number.

454164491 is a deficient number, since it is larger than the sum of its proper divisors (43079653).

454164491 is a wasteful number, since it uses less digits than its factorization.

454164491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149341.

The product of its digits is 69120, while the sum is 38.

The square root of 454164491 is about 21311.1353756669. The cubic root of 454164491 is about 768.6660950045. Note that the first 3 decimals are identical.

The spelling of 454164491 in words is "four hundred fifty-four million, one hundred sixty-four thousand, four hundred ninety-one".