9161236 has 36 divisors (see below), whose sum is σ = 19100928. Its totient is φ = 3831408.

The previous prime is 9161219. The next prime is 9161239. The reversal of 9161236 is 6321619.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9161239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7885 + ... + 8971.

Almost surely, 2^9161236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9161236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9550464).

9161236 is an abundant number, since it is smaller than the sum of its proper divisors (9939692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9161236 is a wasteful number, since it uses less digits than its factorization.

9161236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148 (or 1139 counting only the distinct ones).

The product of its digits is 1944, while the sum is 28.

The square root of 9161236 is about 3026.7533761441. The cubic root of 9161236 is about 209.2432018525.

The spelling of 9161236 in words is "nine million, one hundred sixty-one thousand, two hundred thirty-six".