1453453549 has 2 divisors, whose sum is σ = 1453453550. Its totient is φ = 1453453548.

The previous prime is 1453453543. The next prime is 1453453577. The reversal of 1453453549 is 9453543541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1438684900 + 14768649 = 37930^2 + 3843^2 .

It is a cyclic number.

It is not a de Polignac number, because 1453453549 - 2⁵ = 1453453517 is a prime.

It is a super-2 number, since 2×1453453549² = 4225054438201390802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1453453543) 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, 726726774 + 726726775.

It is an arithmetic number, because the mean of its divisors is an integer number (726726775).

Almost surely, 2^1453453549 is an apocalyptic number.

It is an amenable number.

1453453549 is a deficient number, since it is larger than the sum of its proper divisors (1).

1453453549 is an equidigital number, since it uses as much as digits as its factorization.

1453453549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648000, while the sum is 43.

The square root of 1453453549 is about 38124.1858798322. The cubic root of 1453453549 is about 1132.7490820116.

The spelling of 1453453549 in words is "one billion, four hundred fifty-three million, four hundred fifty-three thousand, five hundred forty-nine".