1002228973 has 2 divisors, whose sum is σ = 1002228974. Its totient is φ = 1002228972.

The previous prime is 1002228961. The next prime is 1002228989. The reversal of 1002228973 is 3798222001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1002228964 + 9 = 31658^2 + 3^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002228973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002228943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501114486 + 501114487.

It is an arithmetic number, because the mean of its divisors is an integer number (501114487).

Almost surely, 2^1002228973 is an apocalyptic number.

It is an amenable number.

1002228973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002228973 is an equidigital number, since it uses as much as digits as its factorization.

1002228973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 1002228973 is about 31658.0001421442. Note that the first 3 decimals coincide. The cubic root of 1002228973 is about 1000.7424396470.

The spelling of 1002228973 in words is "one billion, two million, two hundred twenty-eight thousand, nine hundred seventy-three".