1161396 has 18 divisors (see below), whose sum is σ = 2935842. Its totient is φ = 387120.

The previous prime is 1161371. The next prime is 1161397. The reversal of 1161396 is 6931611.

It can be written as a sum of positive squares in only one way, i.e., 756900 + 404496 = 870^2 + 636^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161397) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16095 + ... + 16166.

2^1161396 is an apocalyptic number.

It is an amenable number.

1161396 is an abundant number, since it is smaller than the sum of its proper divisors (1774446).

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

1161396 is a wasteful number, since it uses less digits than its factorization.

1161396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32271 (or 32266 counting only the distinct ones).

The product of its digits is 972, while the sum is 27.

The square root of 1161396 is about 1077.6808432927. The cubic root of 1161396 is about 105.1138900280.

The spelling of 1161396 in words is "one million, one hundred sixty-one thousand, three hundred ninety-six".