454609849 has 2 divisors, whose sum is σ = 454609850. Its totient is φ = 454609848.

The previous prime is 454609847. The next prime is 454609963. The reversal of 454609849 is 948906454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 333719824 + 120890025 = 18268^2 + 10995^2 .

It is a cyclic number.

It is not a de Polignac number, because 454609849 - 2¹ = 454609847 is a prime.

It is a super-2 number, since 2×454609849² = 413340229615605602, which contains 22 as substring.

Together with 454609847, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (454609847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227304924 + 227304925.

It is an arithmetic number, because the mean of its divisors is an integer number (227304925).

Almost surely, 2^454609849 is an apocalyptic number.

It is an amenable number.

454609849 is a deficient number, since it is larger than the sum of its proper divisors (1).

454609849 is an equidigital number, since it uses as much as digits as its factorization.

454609849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The square root of 454609849 is about 21321.5817659010. The cubic root of 454609849 is about 768.9172666722.

The spelling of 454609849 in words is "four hundred fifty-four million, six hundred nine thousand, eight hundred forty-nine".