453139447 has 2 divisors, whose sum is σ = 453139448. Its totient is φ = 453139446.

The previous prime is 453139409. The next prime is 453139457. The reversal of 453139447 is 744931354.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-453139447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (453139457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226569723 + 226569724.

It is an arithmetic number, because the mean of its divisors is an integer number (226569724).

Almost surely, 2^453139447 is an apocalyptic number.

453139447 is a deficient number, since it is larger than the sum of its proper divisors (1).

453139447 is an equidigital number, since it uses as much as digits as its factorization.

453139447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 40.

The square root of 453139447 is about 21287.0722975237. The cubic root of 453139447 is about 768.0873692333.

The spelling of 453139447 in words is "four hundred fifty-three million, one hundred thirty-nine thousand, four hundred forty-seven".