1161788 has 6 divisors (see below), whose sum is σ = 2033136. Its totient is φ = 580892.

The previous prime is 1161781. The next prime is 1161791. The reversal of 1161788 is 8871611.

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 (1161781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145220 + ... + 145227.

It is an arithmetic number, because the mean of its divisors is an integer number (338856).

2^1161788 is an apocalyptic number.

It is an amenable number.

1161788 is a deficient number, since it is larger than the sum of its proper divisors (871348).

1161788 is a wasteful number, since it uses less digits than its factorization.

1161788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290451 (or 290449 counting only the distinct ones).

The product of its digits is 2688, while the sum is 32.

The square root of 1161788 is about 1077.8626999762. The cubic root of 1161788 is about 105.1257148807.

The spelling of 1161788 in words is "one million, one hundred sixty-one thousand, seven hundred eighty-eight".