610261 has 4 divisors (see below), whose sum is σ = 642400. Its totient is φ = 578124.

The previous prime is 610243. The next prime is 610271. The reversal of 610261 is 162016.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 610261 - 2⁵ = 610229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (610271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16041 + ... + 16078.

It is an arithmetic number, because the mean of its divisors is an integer number (160600).

2⁶¹⁰²⁶¹ is an apocalyptic number.

It is an amenable number.

610261 is a deficient number, since it is larger than the sum of its proper divisors (32139).

610261 is a wasteful number, since it uses less digits than its factorization.

610261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32138.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 610261 is about 781.1920378498. The cubic root of 610261 is about 84.8213549072.

Adding to 610261 its reverse (162016), we get a palindrome (772277).

The spelling of 610261 in words is "six hundred ten thousand, two hundred sixty-one".