1161576 has 96 divisors (see below), whose sum is σ = 3636360. Its totient is φ = 331776.

The previous prime is 1161553. The next prime is 1161581. The reversal of 1161576 is 6751611.

It can be written as a sum of positive squares in 4 ways, for example, as 980100 + 181476 = 990^2 + 426^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15876 + ... + 15948.

2^1161576 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 1161576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1818180).

1161576 is an abundant number, since it is smaller than the sum of its proper divisors (2474784).

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

1161576 is a wasteful number, since it uses less digits than its factorization.

1161576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115 (or 108 counting only the distinct ones).

The product of its digits is 1260, while the sum is 27.

The square root of 1161576 is about 1077.7643527228. The cubic root of 1161576 is about 105.1193201377.

The spelling of 1161576 in words is "one million, one hundred sixty-one thousand, five hundred seventy-six".