1146371209 has 2 divisors, whose sum is σ = 1146371210. Its totient is φ = 1146371208.

The previous prime is 1146371197. The next prime is 1146371257. The reversal of 1146371209 is 9021736411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 916393984 + 229977225 = 30272^2 + 15165^2 .

It is a cyclic number.

It is not a de Polignac number, because 1146371209 - 2²⁷ = 1012153481 is a prime.

It is not a weakly prime, because it can be changed into another prime (1146371509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573185604 + 573185605.

It is an arithmetic number, because the mean of its divisors is an integer number (573185605).

Almost surely, 2^1146371209 is an apocalyptic number.

It is an amenable number.

1146371209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1146371209 is an equidigital number, since it uses as much as digits as its factorization.

1146371209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 1146371209 is about 33858.1040372907. The cubic root of 1146371209 is about 1046.5864075723.

The spelling of 1146371209 in words is "one billion, one hundred forty-six million, three hundred seventy-one thousand, two hundred nine".