165376043 has 4 divisors (see below), whose sum is σ = 189001200. Its totient is φ = 141750888.

The previous prime is 165376039. The next prime is 165376061. The reversal of 165376043 is 340673561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340673561 = 2789 ⋅122149.

It is a cyclic number.

It is not a de Polignac number, because 165376043 - 2² = 165376039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165375994 and 165376012.

It is not an unprimeable number, because it can be changed into a prime (165376073) 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, 11812568 + ... + 11812581.

It is an arithmetic number, because the mean of its divisors is an integer number (47250300).

Almost surely, 2^165376043 is an apocalyptic number.

165376043 is a deficient number, since it is larger than the sum of its proper divisors (23625157).

165376043 is an equidigital number, since it uses as much as digits as its factorization.

165376043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23625156.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 165376043 is about 12859.8617022113. The cubic root of 165376043 is about 548.8970104408.

The spelling of 165376043 in words is "one hundred sixty-five million, three hundred seventy-six thousand, forty-three".