961071271 has 4 divisors (see below), whose sum is σ = 961135000. Its totient is φ = 961007544.

The previous prime is 961071253. The next prime is 961071277. The reversal of 961071271 is 172170169.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 961071271 - 2⁷ = 961071143 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 (961071277) 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, 4885 + ... + 44113.

It is an arithmetic number, because the mean of its divisors is an integer number (240283750).

Almost surely, 2^961071271 is an apocalyptic number.

961071271 is a deficient number, since it is larger than the sum of its proper divisors (63729).

961071271 is a wasteful number, since it uses less digits than its factorization.

961071271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63728.

The product of its (nonzero) digits is 5292, while the sum is 34.

The square root of 961071271 is about 31001.1495109456. The cubic root of 961071271 is about 986.8516351972.

The spelling of 961071271 in words is "nine hundred sixty-one million, seventy-one thousand, two hundred seventy-one".