9161123327 has 4 divisors (see below), whose sum is σ = 9245170440. Its totient is φ = 9077076216.

The previous prime is 9161123311. The next prime is 9161123333. The reversal of 9161123327 is 7233211619.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9161123327 - 2⁴ = 9161123311 is a prime.

It is a super-2 number, since 2×9161123327² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9161123347) 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, 42023393 + ... + 42023610.

It is an arithmetic number, because the mean of its divisors is an integer number (2311292610).

Almost surely, 2^9161123327 is an apocalyptic number.

9161123327 is a deficient number, since it is larger than the sum of its proper divisors (84047113).

9161123327 is a wasteful number, since it uses less digits than its factorization.

9161123327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84047112.

The product of its digits is 13608, while the sum is 35.

The square root of 9161123327 is about 95713.7572504601. The cubic root of 9161123327 is about 2092.4234402954.

The spelling of 9161123327 in words is "nine billion, one hundred sixty-one million, one hundred twenty-three thousand, three hundred twenty-seven".