1146404009 has 2 divisors, whose sum is σ = 1146404010. Its totient is φ = 1146404008.

The previous prime is 1146403991. The next prime is 1146404023. The reversal of 1146404009 is 9004046411.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1014613609 + 131790400 = 31853^2 + 11480^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1146404009 is a prime.

It is not a weakly prime, because it can be changed into another prime (1146404069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573202004 + 573202005.

It is an arithmetic number, because the mean of its divisors is an integer number (573202005).

Almost surely, 2^1146404009 is an apocalyptic number.

It is an amenable number.

1146404009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1146404009 is an equidigital number, since it uses as much as digits as its factorization.

1146404009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 1146404009 is about 33858.5884082606. The cubic root of 1146404009 is about 1046.5963891288.

The spelling of 1146404009 in words is "one billion, one hundred forty-six million, four hundred four thousand, nine".