611265 has 8 divisors (see below), whose sum is σ = 978048. Its totient is φ = 326000.

The previous prime is 611263. The next prime is 611279. The reversal of 611265 is 562116.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 611265 - 2¹ = 611263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (611263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20361 + ... + 20390.

It is an arithmetic number, because the mean of its divisors is an integer number (122256).

2⁶¹¹²⁶⁵ is an apocalyptic number.

It is an amenable number.

611265 is a deficient number, since it is larger than the sum of its proper divisors (366783).

611265 is a wasteful number, since it uses less digits than its factorization.

611265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40759.

The product of its digits is 360, while the sum is 21.

The square root of 611265 is about 781.8343814389. The cubic root of 611265 is about 84.8678453875.

It can be divided in two parts, 61 and 1265, that added together give a triangular number (1326 = T₅₁).

The spelling of 611265 in words is "six hundred eleven thousand, two hundred sixty-five".