453142447 has 2 divisors, whose sum is σ = 453142448. Its totient is φ = 453142446.

The previous prime is 453142409. The next prime is 453142489. The reversal of 453142447 is 744241354.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-453142447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (453142247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226571223 + 226571224.

It is an arithmetic number, because the mean of its divisors is an integer number (226571224).

Almost surely, 2^453142447 is an apocalyptic number.

453142447 is a deficient number, since it is larger than the sum of its proper divisors (1).

453142447 is an equidigital number, since it uses as much as digits as its factorization.

453142447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53760, while the sum is 34.

The square root of 453142447 is about 21287.1427627101. The cubic root of 453142447 is about 768.0890642649.

The spelling of 453142447 in words is "four hundred fifty-three million, one hundred forty-two thousand, four hundred forty-seven".