454377491 has 2 divisors, whose sum is σ = 454377492. Its totient is φ = 454377490.

The previous prime is 454377439. The next prime is 454377503. The reversal of 454377491 is 194773454.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 454377491 - 2¹⁴ = 454361107 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (454377401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227188745 + 227188746.

It is an arithmetic number, because the mean of its divisors is an integer number (227188746).

Almost surely, 2^454377491 is an apocalyptic number.

454377491 is a deficient number, since it is larger than the sum of its proper divisors (1).

454377491 is an equidigital number, since it uses as much as digits as its factorization.

454377491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 44.

The square root of 454377491 is about 21316.1321772971. The cubic root of 454377491 is about 768.7862425815.

The spelling of 454377491 in words is "four hundred fifty-four million, three hundred seventy-seven thousand, four hundred ninety-one".