1090164643 has 2 divisors, whose sum is σ = 1090164644. Its totient is φ = 1090164642.

The previous prime is 1090164641. The next prime is 1090164659. The reversal of 1090164643 is 3464610901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1090164643 - 2¹ = 1090164641 is a prime.

Together with 1090164641, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1090164599 and 1090164608.

It is not a weakly prime, because it can be changed into another prime (1090164641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545082321 + 545082322.

It is an arithmetic number, because the mean of its divisors is an integer number (545082322).

Almost surely, 2^1090164643 is an apocalyptic number.

1090164643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1090164643 is an equidigital number, since it uses as much as digits as its factorization.

1090164643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 1090164643 is about 33017.6413906263. The cubic root of 1090164643 is about 1029.1942808139.

The spelling of 1090164643 in words is "one billion, ninety million, one hundred sixty-four thousand, six hundred forty-three".