1161536 has 14 divisors (see below), whose sum is σ = 2305050. Its totient is φ = 580736.

The previous prime is 1161529. The next prime is 1161547. The reversal of 1161536 is 6351611.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 891136 + 270400 = 944^2 + 520^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9011 + ... + 9138.

2^1161536 is an apocalyptic number.

1161536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1161536 is a deficient number, since it is larger than the sum of its proper divisors (1143514).

1161536 is an equidigital number, since it uses as much as digits as its factorization.

1161536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18161 (or 18151 counting only the distinct ones).

The product of its digits is 540, while the sum is 23.

The square root of 1161536 is about 1077.7457956309. The cubic root of 1161536 is about 105.1181134951.

The spelling of 1161536 in words is "one million, one hundred sixty-one thousand, five hundred thirty-six".