1108646431 has 2 divisors, whose sum is σ = 1108646432. Its totient is φ = 1108646430.

The previous prime is 1108646417. The next prime is 1108646467. The reversal of 1108646431 is 1346468011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1108646431 - 2⁹ = 1108645919 is a prime.

It is a super-2 number, since 2×1108646431² = 2458193817938075522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1108646471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554323215 + 554323216.

It is an arithmetic number, because the mean of its divisors is an integer number (554323216).

Almost surely, 2^1108646431 is an apocalyptic number.

1108646431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1108646431 is an equidigital number, since it uses as much as digits as its factorization.

1108646431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 1108646431 is about 33296.3426069591. The cubic root of 1108646431 is about 1034.9777682763.

The spelling of 1108646431 in words is "one billion, one hundred eight million, six hundred forty-six thousand, four hundred thirty-one".