1261112 has 8 divisors (see below), whose sum is σ = 2364600. Its totient is φ = 630552.

The previous prime is 1261109. The next prime is 1261121. The reversal of 1261112 is 2111621.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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, 78812 + ... + 78827.

It is an arithmetic number, because the mean of its divisors is an integer number (295575).

2^1261112 is an apocalyptic number.

It is an amenable number.

1261112 is a deficient number, since it is larger than the sum of its proper divisors (1103488).

1261112 is a wasteful number, since it uses less digits than its factorization.

1261112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157645 (or 157641 counting only the distinct ones).

The product of its digits is 24, while the sum is 14.

The square root of 1261112 is about 1122.9924309629. The cubic root of 1261112 is about 108.0399943325.

Adding to 1261112 its reverse (2111621), we get a palindrome (3372733).

The spelling of 1261112 in words is "one million, two hundred sixty-one thousand, one hundred twelve".