1140872 has 8 divisors (see below), whose sum is σ = 2139150. Its totient is φ = 570432.

The previous prime is 1140871. The next prime is 1140901. The reversal of 1140872 is 2780411.

It can be written as a sum of positive squares in only one way, i.e., 763876 + 376996 = 874^2 + 614^2 .

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

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1140871) 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, 71297 + ... + 71312.

2^1140872 is an apocalyptic number.

It is an amenable number.

1140872 is a deficient number, since it is larger than the sum of its proper divisors (998278).

1140872 is a wasteful number, since it uses less digits than its factorization.

1140872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142615 (or 142611 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 1140872 is about 1068.1160985586. The cubic root of 1140872 is about 104.4910212595.

The spelling of 1140872 in words is "one million, one hundred forty thousand, eight hundred seventy-two".