1151872 has 16 divisors (see below), whose sum is σ = 2295000. Its totient is φ = 575872.

The previous prime is 1151861. The next prime is 1151873. The reversal of 1151872 is 2781511.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4372 + ... + 4627.

2^1151872 is an apocalyptic number.

It is an amenable number.

1151872 is a deficient number, since it is larger than the sum of its proper divisors (1143128).

1151872 is an frugal number, since it uses more digits than its factorization.

1151872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9013 (or 9001 counting only the distinct ones).

The product of its digits is 560, while the sum is 25.

The square root of 1151872 is about 1073.2529990641. The cubic root of 1151872 is about 104.8257730447.

The spelling of 1151872 in words is "one million, one hundred fifty-one thousand, eight hundred seventy-two".