165210343 has 4 divisors (see below), whose sum is σ = 169052488. Its totient is φ = 161368200.

The previous prime is 165210337. The next prime is 165210349. The reversal of 165210343 is 343012561.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (165210337) and next prime (165210349).

It is a cyclic number.

It is not a de Polignac number, because 165210343 - 2⁹ = 165209831 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165210349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1921008 + ... + 1921093.

It is an arithmetic number, because the mean of its divisors is an integer number (42263122).

Almost surely, 2^165210343 is an apocalyptic number.

165210343 is a deficient number, since it is larger than the sum of its proper divisors (3842145).

165210343 is an equidigital number, since it uses as much as digits as its factorization.

165210343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3842144.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 165210343 is about 12853.4175611002. The cubic root of 165210343 is about 548.7136250953.

The spelling of 165210343 in words is "one hundred sixty-five million, two hundred ten thousand, three hundred forty-three".