9161957 has 8 divisors (see below), whose sum is σ = 10808832. Its totient is φ = 7599600.

The previous prime is 9161939. The next prime is 9161959. The reversal of 9161957 is 7591619.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9161957 - 2²² = 4967653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9161957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9161959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20894 + ... + 21327.

It is an arithmetic number, because the mean of its divisors is an integer number (1351104).

Almost surely, 2^9161957 is an apocalyptic number.

It is an amenable number.

9161957 is a deficient number, since it is larger than the sum of its proper divisors (1646875).

9161957 is a wasteful number, since it uses less digits than its factorization.

9161957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42259.

The product of its digits is 17010, while the sum is 38.

The square root of 9161957 is about 3026.8724783182. The cubic root of 9161957 is about 209.2486909368.

The spelling of 9161957 in words is "nine million, one hundred sixty-one thousand, nine hundred fifty-seven".