1133402609 has 4 divisors (see below), whose sum is σ = 1133495616. Its totient is φ = 1133309604.

The previous prime is 1133402591. The next prime is 1133402617. The reversal of 1133402609 is 9062043311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1133402609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1133402659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24869 + ... + 53714.

It is an arithmetic number, because the mean of its divisors is an integer number (283373904).

Almost surely, 2^1133402609 is an apocalyptic number.

It is an amenable number.

1133402609 is a deficient number, since it is larger than the sum of its proper divisors (93007).

1133402609 is an equidigital number, since it uses as much as digits as its factorization.

1133402609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93006.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 1133402609 is about 33666.0453424515. The cubic root of 1133402609 is about 1042.6248442788.

The spelling of 1133402609 in words is "one billion, one hundred thirty-three million, four hundred two thousand, six hundred nine".