1146324821 has 2 divisors, whose sum is σ = 1146324822. Its totient is φ = 1146324820.

The previous prime is 1146324793. The next prime is 1146324833. The reversal of 1146324821 is 1284236411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 585156100 + 561168721 = 24190^2 + 23689^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1146324821 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1146354821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573162410 + 573162411.

It is an arithmetic number, because the mean of its divisors is an integer number (573162411).

Almost surely, 2^1146324821 is an apocalyptic number.

It is an amenable number.

1146324821 is a deficient number, since it is larger than the sum of its proper divisors (1).

1146324821 is an equidigital number, since it uses as much as digits as its factorization.

1146324821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 32.

The square root of 1146324821 is about 33857.4189949559. The cubic root of 1146324821 is about 1046.5722906485.

The spelling of 1146324821 in words is "one billion, one hundred forty-six million, three hundred twenty-four thousand, eight hundred twenty-one".