1162009 has 2 divisors, whose sum is σ = 1162010. Its totient is φ = 1162008.

The previous prime is 1161997. The next prime is 1162037. The reversal of 1162009 is 9002611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 632025 + 529984 = 795^2 + 728^2 .

It is a cyclic number.

It is not a de Polignac number, because 1162009 - 2⁹ = 1161497 is a prime.

It is equal to p₉₀₁₈₁ and since 1162009 and 90181 have the same sum of digits, it is a Honaker prime.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (1162079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581004 + 581005.

It is an arithmetic number, because the mean of its divisors is an integer number (581005).

2^1162009 is an apocalyptic number.

It is an amenable number.

1162009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1162009 is an equidigital number, since it uses as much as digits as its factorization.

1162009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 1162009 is about 1077.9652127968. The cubic root of 1162009 is about 105.1323802706.

The spelling of 1162009 in words is "one million, one hundred sixty-two thousand, nine".