1634485453 has 2 divisors, whose sum is σ = 1634485454. Its totient is φ = 1634485452.

The previous prime is 1634485441. The next prime is 1634485493. The reversal of 1634485453 is 3545844361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1284720649 + 349764804 = 35843^2 + 18702^2 .

It is a cyclic number.

It is not a de Polignac number, because 1634485453 - 2²¹ = 1632388301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1634485493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 817242726 + 817242727.

It is an arithmetic number, because the mean of its divisors is an integer number (817242727).

Almost surely, 2^1634485453 is an apocalyptic number.

It is an amenable number.

1634485453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1634485453 is an equidigital number, since it uses as much as digits as its factorization.

1634485453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 691200, while the sum is 43.

The square root of 1634485453 is about 40428.7701148576. The cubic root of 1634485453 is about 1177.9504431655.

The spelling of 1634485453 in words is "one billion, six hundred thirty-four million, four hundred eighty-five thousand, four hundred fifty-three".