261712070 has 16 divisors (see below), whose sum is σ = 471300768. Its totient is φ = 104636160.

The previous prime is 261712067. The next prime is 261712103. The reversal of 261712070 is 70217162.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23222 + ... + 32598.

It is an arithmetic number, because the mean of its divisors is an integer number (29456298).

Almost surely, 2^261712070 is an apocalyptic number.

261712070 is a deficient number, since it is larger than the sum of its proper divisors (209588698).

261712070 is a wasteful number, since it uses less digits than its factorization.

261712070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12175.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 261712070 is about 16177.5174238818. The cubic root of 261712070 is about 639.6483012328.

The spelling of 261712070 in words is "two hundred sixty-one million, seven hundred twelve thousand, seventy".