221295383 has 2 divisors, whose sum is σ = 221295384. Its totient is φ = 221295382.

The previous prime is 221295359. The next prime is 221295401. The reversal of 221295383 is 383592122.

221295383 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221295383 - 2⁸ = 221295127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221295313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110647691 + 110647692.

It is an arithmetic number, because the mean of its divisors is an integer number (110647692).

Almost surely, 2^221295383 is an apocalyptic number.

221295383 is a deficient number, since it is larger than the sum of its proper divisors (1).

221295383 is an equidigital number, since it uses as much as digits as its factorization.

221295383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 35.

The square root of 221295383 is about 14876.0002352783. Note that the first 3 decimals coincide. The cubic root of 221295383 is about 604.8636015166.

The spelling of 221295383 in words is "two hundred twenty-one million, two hundred ninety-five thousand, three hundred eighty-three".