261094 has 4 divisors (see below), whose sum is σ = 391644. Its totient is φ = 130546.

The previous prime is 261089. The next prime is 261101. The reversal of 261094 is 490162.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65272 + ... + 65275.

It is an arithmetic number, because the mean of its divisors is an integer number (97911).

2²⁶¹⁰⁹⁴ is an apocalyptic number.

261094 is a deficient number, since it is larger than the sum of its proper divisors (130550).

261094 is a wasteful number, since it uses less digits than its factorization.

261094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130549.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 261094 is about 510.9735805303. The cubic root of 261094 is about 63.9144364397.

It can be divided in two parts, 2610 and 94, that added together give a square (2704 = 52²).

The spelling of 261094 in words is "two hundred sixty-one thousand, ninety-four".