1105573421 has 2 divisors, whose sum is σ = 1105573422. Its totient is φ = 1105573420.

The previous prime is 1105573331. The next prime is 1105573459. The reversal of 1105573421 is 1243755011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1105230025 + 343396 = 33245^2 + 586^2 .

It is an emirp because it is prime and its reverse (1243755011) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1105573421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1105573471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552786710 + 552786711.

It is an arithmetic number, because the mean of its divisors is an integer number (552786711).

Almost surely, 2^1105573421 is an apocalyptic number.

It is an amenable number.

1105573421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105573421 is an equidigital number, since it uses as much as digits as its factorization.

1105573421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 1105573421 is about 33250.1642251583. The cubic root of 1105573421 is about 1034.0206130449.

The spelling of 1105573421 in words is "one billion, one hundred five million, five hundred seventy-three thousand, four hundred twenty-one".