1093022921 has 2 divisors, whose sum is σ = 1093022922. Its totient is φ = 1093022920.

The previous prime is 1093022881. The next prime is 1093022947. The reversal of 1093022921 is 1292203901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 952339600 + 140683321 = 30860^2 + 11861^2 .

It is a cyclic number.

It is not a de Polignac number, because 1093022921 - 2⁶ = 1093022857 is a prime.

It is not a weakly prime, because it can be changed into another prime (1093022971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 546511460 + 546511461.

It is an arithmetic number, because the mean of its divisors is an integer number (546511461).

Almost surely, 2^1093022921 is an apocalyptic number.

It is an amenable number.

1093022921 is a deficient number, since it is larger than the sum of its proper divisors (1).

1093022921 is an equidigital number, since it uses as much as digits as its factorization.

1093022921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 1093022921 is about 33060.8971596356. The cubic root of 1093022921 is about 1030.0929695828.

The spelling of 1093022921 in words is "one billion, ninety-three million, twenty-two thousand, nine hundred twenty-one".