1140534 has 16 divisors (see below), whose sum is σ = 2534640. Its totient is φ = 380160.

The previous prime is 1140533. The next prime is 1140539. The reversal of 1140534 is 4350411.

It is a happy number.

It is a Smith number, since the sum of its digits (18) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10507 + ... + 10614.

It is an arithmetic number, because the mean of its divisors is an integer number (158415).

2^1140534 is an apocalyptic number.

1140534 is an abundant number, since it is smaller than the sum of its proper divisors (1394106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1140534 is a wasteful number, since it uses less digits than its factorization.

1140534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21132 (or 21126 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1140534 is about 1067.9578643374. The cubic root of 1140534 is about 104.4807012430.

Adding to 1140534 its reverse (4350411), we get a palindrome (5490945).

The spelling of 1140534 in words is "one million, one hundred forty thousand, five hundred thirty-four".