1161012 has 24 divisors (see below), whose sum is σ = 2797312. Its totient is φ = 374400.

The previous prime is 1161011. The next prime is 1161031. The reversal of 1161012 is 2101611.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161011) 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 in 7 ways as a sum of consecutive naturals, for example, 1189 + ... + 1932.

2^1161012 is an apocalyptic number.

1161012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1161012 is an abundant number, since it is smaller than the sum of its proper divisors (1636300).

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

1161012 is a wasteful number, since it uses less digits than its factorization.

1161012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3159 (or 3157 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1161012 is about 1077.5026682102. The cubic root of 1161012 is about 105.1023039187.

Adding to 1161012 its reverse (2101611), we get a palindrome (3262623).

It can be divided in two parts, 116 and 1012, that added together give a triangular number (1128 = T₄₇).

The spelling of 1161012 in words is "one million, one hundred sixty-one thousand, twelve".