261070 has 8 divisors (see below), whose sum is σ = 469944. Its totient is φ = 104424.

The previous prime is 261061. The next prime is 261071. The reversal of 261070 is 70162.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261071) 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, 13044 + ... + 13063.

It is an arithmetic number, because the mean of its divisors is an integer number (58743).

2²⁶¹⁰⁷⁰ is an apocalyptic number.

261070 is a deficient number, since it is larger than the sum of its proper divisors (208874).

261070 is a wasteful number, since it uses less digits than its factorization.

261070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26114.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 261070 is about 510.9500954105. The cubic root of 261070 is about 63.9124780218.

The spelling of 261070 in words is "two hundred sixty-one thousand, seventy".