165430843 has 2 divisors, whose sum is σ = 165430844. Its totient is φ = 165430842.

The previous prime is 165430831. The next prime is 165430873. The reversal of 165430843 is 348034561.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165430843 - 2²¹ = 163333691 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 165430799 and 165430808.

It is not a weakly prime, because it can be changed into another prime (165430813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82715421 + 82715422.

It is an arithmetic number, because the mean of its divisors is an integer number (82715422).

Almost surely, 2^165430843 is an apocalyptic number.

165430843 is a deficient number, since it is larger than the sum of its proper divisors (1).

165430843 is an equidigital number, since it uses as much as digits as its factorization.

165430843 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 165430843 is about 12861.9921862828. The cubic root of 165430843 is about 548.9576323499.

The spelling of 165430843 in words is "one hundred sixty-five million, four hundred thirty thousand, eight hundred forty-three".