2665043 has 2 divisors, whose sum is σ = 2665044. Its totient is φ = 2665042.

The previous prime is 2665037. The next prime is 2665051. The reversal of 2665043 is 3405662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2665043 - 2⁴ = 2665027 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2665063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1332521 + 1332522.

It is an arithmetic number, because the mean of its divisors is an integer number (1332522).

2^2665043 is an apocalyptic number.

2665043 is a deficient number, since it is larger than the sum of its proper divisors (1).

2665043 is an equidigital number, since it uses as much as digits as its factorization.

2665043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 2665043 is about 1632.4959418020. The cubic root of 2665043 is about 138.6441044663.

The spelling of 2665043 in words is "two million, six hundred sixty-five thousand, forty-three".