1121972 has 12 divisors (see below), whose sum is σ = 1975680. Its totient is φ = 557496.

The previous prime is 1121947. The next prime is 1121987. The reversal of 1121972 is 2791211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68 + ... + 1499.

It is an arithmetic number, because the mean of its divisors is an integer number (164640).

2^1121972 is an apocalyptic number.

It is an amenable number.

1121972 is a deficient number, since it is larger than the sum of its proper divisors (853708).

1121972 is a wasteful number, since it uses less digits than its factorization.

1121972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750 (or 1748 counting only the distinct ones).

The product of its digits is 252, while the sum is 23.

The square root of 1121972 is about 1059.2317971058. The cubic root of 1121972 is about 103.9107962904.

The spelling of 1121972 in words is "one million, one hundred twenty-one thousand, nine hundred seventy-two".