1141864 has 8 divisors (see below), whose sum is σ = 2141010. Its totient is φ = 570928.

The previous prime is 1141853. The next prime is 1141867. The reversal of 1141864 is 4681411.

It can be written as a sum of positive squares in only one way, i.e., 1119364 + 22500 = 1058^2 + 150^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1141867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71359 + ... + 71374.

2^1141864 is an apocalyptic number.

It is an amenable number.

1141864 is a deficient number, since it is larger than the sum of its proper divisors (999146).

1141864 is a wasteful number, since it uses less digits than its factorization.

1141864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142739 (or 142735 counting only the distinct ones).

The product of its digits is 768, while the sum is 25.

The square root of 1141864 is about 1068.5803666548. The cubic root of 1141864 is about 104.5212978271.

The spelling of 1141864 in words is "one million, one hundred forty-one thousand, eight hundred sixty-four".