1135423643 has 8 divisors (see below), whose sum is σ = 1163097408. Its totient is φ = 1107807624.

The previous prime is 1135423637. The next prime is 1135423651. The reversal of 1135423643 is 3463245311.

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

It is not a de Polignac number, because 1135423643 - 2⁶ = 1135423579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1135423613) 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, 26780 + ... + 54662.

It is an arithmetic number, because the mean of its divisors is an integer number (145387176).

Almost surely, 2^1135423643 is an apocalyptic number.

1135423643 is a deficient number, since it is larger than the sum of its proper divisors (27673765).

1135423643 is an equidigital number, since it uses as much as digits as its factorization.

1135423643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28873.

The product of its digits is 25920, while the sum is 32.

The square root of 1135423643 is about 33696.0478839878. The cubic root of 1135423643 is about 1043.2441973092.

Adding to 1135423643 its reverse (3463245311), we get a palindrome (4598668954).

The spelling of 1135423643 in words is "one billion, one hundred thirty-five million, four hundred twenty-three thousand, six hundred forty-three".