1146821461 has 2 divisors, whose sum is σ = 1146821462. Its totient is φ = 1146821460.

The previous prime is 1146821453. The next prime is 1146821483. The reversal of 1146821461 is 1641286411.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 930555025 + 216266436 = 30505^2 + 14706^2 .

It is a cyclic number.

It is not a de Polignac number, because 1146821461 - 2³ = 1146821453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1146822461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573410730 + 573410731.

It is an arithmetic number, because the mean of its divisors is an integer number (573410731).

Almost surely, 2^1146821461 is an apocalyptic number.

It is an amenable number.

1146821461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1146821461 is an equidigital number, since it uses as much as digits as its factorization.

1146821461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9216, while the sum is 34.

The square root of 1146821461 is about 33864.7524869148. The cubic root of 1146821461 is about 1046.7234097171.

The spelling of 1146821461 in words is "one billion, one hundred forty-six million, eight hundred twenty-one thousand, four hundred sixty-one".