1111972 has 6 divisors (see below), whose sum is σ = 1945958. Its totient is φ = 555984.

The previous prime is 1111967. The next prime is 1111991. The reversal of 1111972 is 2791111.

It can be written as a sum of positive squares in only one way, i.e., 602176 + 509796 = 776^2 + 714^2 .

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, 138993 + ... + 139000.

2^1111972 is an apocalyptic number.

It is an amenable number.

1111972 is a deficient number, since it is larger than the sum of its proper divisors (833986).

1111972 is a wasteful number, since it uses less digits than its factorization.

1111972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277997 (or 277995 counting only the distinct ones).

The product of its digits is 126, while the sum is 22.

The square root of 1111972 is about 1054.5008297768. The cubic root of 1111972 is about 103.6011597789.

The spelling of 1111972 in words is "one million, one hundred eleven thousand, nine hundred seventy-two".