1054455491 has 2 divisors, whose sum is σ = 1054455492. Its totient is φ = 1054455490.

The previous prime is 1054455487. The next prime is 1054455497. The reversal of 1054455491 is 1945544501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1054455491 - 2² = 1054455487 is a prime.

It is a super-2 number, since 2×1054455491² = 2223752765000102162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1054455497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527227745 + 527227746.

It is an arithmetic number, because the mean of its divisors is an integer number (527227746).

Almost surely, 2^1054455491 is an apocalyptic number.

1054455491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1054455491 is an equidigital number, since it uses as much as digits as its factorization.

1054455491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72000, while the sum is 38.

The square root of 1054455491 is about 32472.3804332236. The cubic root of 1054455491 is about 1017.8319614230.

Adding to 1054455491 its reverse (1945544501), we get a palindrome (2999999992).

The spelling of 1054455491 in words is "one billion, fifty-four million, four hundred fifty-five thousand, four hundred ninety-one".