961065181 has 4 divisors (see below), whose sum is σ = 961168000. Its totient is φ = 960962364.

The previous prime is 961065169. The next prime is 961065211. The reversal of 961065181 is 181560169.

961065181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, 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 961065181 - 2¹⁷ = 960934109 is a prime.

It is a super-4 number, since 4×961065181⁴ (a number of 37 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 961065181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961465181) 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, 35811 + ... + 56608.

It is an arithmetic number, because the mean of its divisors is an integer number (240292000).

Almost surely, 2^961065181 is an apocalyptic number.

It is an amenable number.

961065181 is a deficient number, since it is larger than the sum of its proper divisors (102819).

961065181 is a wasteful number, since it uses less digits than its factorization.

961065181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102818.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 961065181 is about 31001.0512886257. The cubic root of 961065181 is about 986.8495507389.

The spelling of 961065181 in words is "nine hundred sixty-one million, sixty-five thousand, one hundred eighty-one".