265394 has 4 divisors (see below), whose sum is σ = 398094. Its totient is φ = 132696.

The previous prime is 265381. The next prime is 265399. The reversal of 265394 is 493562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 493562 = 2 ⋅246781.

It can be written as a sum of positive squares in only one way, i.e., 265225 + 169 = 515^2 + 13^2 .

It is not an unprimeable number, because it can be changed into a prime (265399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66347 + ... + 66350.

265394 is a Friedman number, since it can be written as 26*5^3+4^9, using all its digits and the basic arithmetic operations.

2²⁶⁵³⁹⁴ is an apocalyptic number.

265394 is a deficient number, since it is larger than the sum of its proper divisors (132700).

265394 is a wasteful number, since it uses less digits than its factorization.

265394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132699.

The product of its digits is 6480, while the sum is 29.

The square root of 265394 is about 515.1640515409. The cubic root of 265394 is about 64.2634001332.

The spelling of 265394 in words is "two hundred sixty-five thousand, three hundred ninety-four".