1140553 has 4 divisors (see below), whose sum is σ = 1143040. Its totient is φ = 1138068.

The previous prime is 1140539. The next prime is 1140563. The reversal of 1140553 is 3550411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1140553 is a prime.

It is a super-2 number, since 2×1140553² = 2601722291618, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1140553.

It is not an unprimeable number, because it can be changed into a prime (1140533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333 + ... + 1546.

It is an arithmetic number, because the mean of its divisors is an integer number (285760).

2^1140553 is an apocalyptic number.

It is an amenable number.

1140553 is a deficient number, since it is larger than the sum of its proper divisors (2487).

1140553 is an equidigital number, since it uses as much as digits as its factorization.

1140553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2486.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 1140553 is about 1067.9667597823. The cubic root of 1140553 is about 104.4812814164.

Adding to 1140553 its reverse (3550411), we get a palindrome (4690964).

The spelling of 1140553 in words is "one million, one hundred forty thousand, five hundred fifty-three".