453874649 has 2 divisors, whose sum is σ = 453874650. Its totient is φ = 453874648.

The previous prime is 453874613. The next prime is 453874651. The reversal of 453874649 is 946478354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 306495049 + 147379600 = 17507^2 + 12140^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-453874649 is a prime.

Together with 453874651, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 453874597 and 453874606.

It is not a weakly prime, because it can be changed into another prime (453874609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226937324 + 226937325.

It is an arithmetic number, because the mean of its divisors is an integer number (226937325).

Almost surely, 2^453874649 is an apocalyptic number.

It is an amenable number.

453874649 is a deficient number, since it is larger than the sum of its proper divisors (1).

453874649 is an equidigital number, since it uses as much as digits as its factorization.

453874649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 50.

The square root of 453874649 is about 21304.3340426309. The cubic root of 453874649 is about 768.5025425664.

The spelling of 453874649 in words is "four hundred fifty-three million, eight hundred seventy-four thousand, six hundred forty-nine".