265451 has 2 divisors, whose sum is σ = 265452. Its totient is φ = 265450.

The previous prime is 265427. The next prime is 265459. The reversal of 265451 is 154562.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 265451 - 2¹⁸ = 3307 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (265459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132725 + 132726.

It is an arithmetic number, because the mean of its divisors is an integer number (132726).

2²⁶⁵⁴⁵¹ is an apocalyptic number.

265451 is a deficient number, since it is larger than the sum of its proper divisors (1).

265451 is an equidigital number, since it uses as much as digits as its factorization.

265451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1200, while the sum is 23.

The square root of 265451 is about 515.2193707539. The cubic root of 265451 is about 64.2680005281.

Subtracting from 265451 its reverse (154562), we obtain a square (110889 = 333²).

The spelling of 265451 in words is "two hundred sixty-five thousand, four hundred fifty-one".