9161559 has 32 divisors (see below), whose sum is σ = 14995200. Its totient is φ = 5482080.

The previous prime is 9161557. The next prime is 9161597. The reversal of 9161559 is 9551619.

It is not a de Polignac number, because 9161559 - 2¹ = 9161557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9161557) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32232 + ... + 32514.

It is an arithmetic number, because the mean of its divisors is an integer number (468600).

Almost surely, 2^9161559 is an apocalyptic number.

9161559 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

9161559 is a deficient number, since it is larger than the sum of its proper divisors (5833641).

9161559 is a wasteful number, since it uses less digits than its factorization.

9161559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412 (or 406 counting only the distinct ones).

The product of its digits is 12150, while the sum is 36.

The square root of 9161559 is about 3026.8067331761. The cubic root of 9161559 is about 209.2456609370.

The spelling of 9161559 in words is "nine million, one hundred sixty-one thousand, five hundred fifty-nine".