1135402543 has 8 divisors (see below), whose sum is σ = 1239875280. Its totient is φ = 1031138880.

The previous prime is 1135402537. The next prime is 1135402561. The reversal of 1135402543 is 3452045311.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1135402543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1135402343) 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, 40798 + ... + 62731.

It is an arithmetic number, because the mean of its divisors is an integer number (154984410).

Almost surely, 2^1135402543 is an apocalyptic number.

1135402543 is a deficient number, since it is larger than the sum of its proper divisors (104472737).

1135402543 is a wasteful number, since it uses less digits than its factorization.

1135402543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104537.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 1135402543 is about 33695.7347894359. The cubic root of 1135402543 is about 1043.2377349375.

Adding to 1135402543 its reverse (3452045311), we get a palindrome (4587447854).

The spelling of 1135402543 in words is "one billion, one hundred thirty-five million, four hundred two thousand, five hundred forty-three".