1161648 has 40 divisors (see below), whose sum is σ = 3335600. Its totient is φ = 387072.

The previous prime is 1161647. The next prime is 1161659. The reversal of 1161648 is 8461611.

1161648 is a `hidden beast` number, since 1 + 1 + 616 + 48 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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

It is an Ulam number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (1161647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 913 + ... + 1776.

It is an arithmetic number, because the mean of its divisors is an integer number (83390).

2^1161648 is an apocalyptic number.

1161648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1161648 is an abundant number, since it is smaller than the sum of its proper divisors (2173952).

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

1161648 is a wasteful number, since it uses less digits than its factorization.

1161648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2706 (or 2694 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 1161648 is about 1077.7977546831. The cubic root of 1161648 is about 105.1214920244.

It can be divided in two parts, 11616 and 48, that added together give a square (11664 = 108²).

The spelling of 1161648 in words is "one million, one hundred sixty-one thousand, six hundred forty-eight".