1140543534 has 32 divisors (see below), whose sum is σ = 2471293440. Its totient is φ = 348831072.

The previous prime is 1140543529. The next prime is 1140543539. The reversal of 1140543534 is 4353450411.

It is an interprime number because it is at equal distance from previous prime (1140543529) and next prime (1140543539).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140543539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30754 + ... + 56805.

It is an arithmetic number, because the mean of its divisors is an integer number (77227920).

Almost surely, 2^1140543534 is an apocalyptic number.

1140543534 is an abundant number, since it is smaller than the sum of its proper divisors (1330749906).

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

1140543534 is a wasteful number, since it uses less digits than its factorization.

1140543534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87744.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 1140543534 is about 33771.9341169558. The cubic root of 1140543534 is about 1044.8099236869.

Adding to 1140543534 its reverse (4353450411), we get a palindrome (5493993945).

The spelling of 1140543534 in words is "one billion, one hundred forty million, five hundred forty-three thousand, five hundred thirty-four".