1145849 has 2 divisors, whose sum is σ = 1145850. Its totient is φ = 1145848.

The previous prime is 1145843. The next prime is 1145873. The reversal of 1145849 is 9485411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1092025 + 53824 = 1045^2 + 232^2 .

It is a cyclic number.

It is not a de Polignac number, because 1145849 - 2⁸ = 1145593 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1145843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572924 + 572925.

It is an arithmetic number, because the mean of its divisors is an integer number (572925).

2^1145849 is an apocalyptic number.

It is an amenable number.

1145849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145849 is an equidigital number, since it uses as much as digits as its factorization.

1145849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 32.

The square root of 1145849 is about 1070.4433660872. The cubic root of 1145849 is about 104.6427465499.

The spelling of 1145849 in words is "one million, one hundred forty-five thousand, eight hundred forty-nine".