2665142 has 4 divisors (see below), whose sum is σ = 3997716. Its totient is φ = 1332570.

The previous prime is 2665139. The next prime is 2665177. The reversal of 2665142 is 2415662.

2665142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

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, 666284 + ... + 666287.

It is an arithmetic number, because the mean of its divisors is an integer number (999429).

2^2665142 is an apocalyptic number.

2665142 is a deficient number, since it is larger than the sum of its proper divisors (1332574).

2665142 is a wasteful number, since it uses less digits than its factorization.

2665142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332573.

The product of its digits is 2880, while the sum is 26.

The square root of 2665142 is about 1632.5262631884. The cubic root of 2665142 is about 138.6458212111.

It can be divided in two parts, 266514 and 2, that multiplied together give a triangular number (533028 = T₁₀₃₂).

The spelling of 2665142 in words is "two million, six hundred sixty-five thousand, one hundred forty-two".