265942 has 4 divisors (see below), whose sum is σ = 398916. Its totient is φ = 132970.

The previous prime is 265921. The next prime is 265957. The reversal of 265942 is 249562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 249562 = 2 ⋅124781.

It is a self number, because there is not a number n which added to its sum of digits gives 265942.

It is a congruent number.

It is an unprimeable number.

265942 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66484 + ... + 66487.

It is an arithmetic number, because the mean of its divisors is an integer number (99729).

2²⁶⁵⁹⁴² is an apocalyptic number.

265942 is a deficient number, since it is larger than the sum of its proper divisors (132974).

265942 is a wasteful number, since it uses less digits than its factorization.

265942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132973.

The product of its digits is 4320, while the sum is 28.

The square root of 265942 is about 515.6956466754. The cubic root of 265942 is about 64.3076012482.

It can be divided in two parts, 2659 and 42, that added together give a triangular number (2701 = T₇₃).

The spelling of 265942 in words is "two hundred sixty-five thousand, nine hundred forty-two".