1181972 has 12 divisors (see below), whose sum is σ = 2256576. Its totient is φ = 537240.

The previous prime is 1181969. The next prime is 1181981. The reversal of 1181972 is 2791811.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

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, 13388 + ... + 13475.

It is an arithmetic number, because the mean of its divisors is an integer number (188048).

2^1181972 is an apocalyptic number.

It is an amenable number.

1181972 is a deficient number, since it is larger than the sum of its proper divisors (1074604).

1181972 is a wasteful number, since it uses less digits than its factorization.

1181972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26878 (or 26876 counting only the distinct ones).

The product of its digits is 1008, while the sum is 29.

The square root of 1181972 is about 1087.1853567814. The cubic root of 1181972 is about 105.7310137360.

The spelling of 1181972 in words is "one million, one hundred eighty-one thousand, nine hundred seventy-two".