261713106 has 40 divisors (see below), whose sum is σ = 617303280. Its totient is φ = 82645272.

The previous prime is 261713083. The next prime is 261713117. The reversal of 261713106 is 601317162.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 261713106.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 39436 + ... + 45591.

It is an arithmetic number, because the mean of its divisors is an integer number (15432582).

Almost surely, 2^261713106 is an apocalyptic number.

261713106 is an abundant number, since it is smaller than the sum of its proper divisors (355590174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

261713106 is a wasteful number, since it uses less digits than its factorization.

261713106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85060 (or 85051 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 261713106 is about 16177.5494435962. The cubic root of 261713106 is about 639.6491452580.

The spelling of 261713106 in words is "two hundred sixty-one million, seven hundred thirteen thousand, one hundred six".