1140040535 has 8 divisors (see below), whose sum is σ = 1374076656. Its totient is φ = 908013760.

The previous prime is 1140040523. The next prime is 1140040537. The reversal of 1140040535 is 5350400411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1140040535 is a prime.

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 1140040535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140040537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501086 + ... + 503355.

It is an arithmetic number, because the mean of its divisors is an integer number (171759582).

Almost surely, 2^1140040535 is an apocalyptic number.

1140040535 is a deficient number, since it is larger than the sum of its proper divisors (234036121).

1140040535 is a wasteful number, since it uses less digits than its factorization.

1140040535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004673.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1140040535 is about 33764.4862984764. The cubic root of 1140040535 is about 1044.6563081497.

Adding to 1140040535 its reverse (5350400411), we get a palindrome (6490440946).

The spelling of 1140040535 in words is "one billion, one hundred forty million, forty thousand, five hundred thirty-five".