1134345661 has 4 divisors (see below), whose sum is σ = 1134853632. Its totient is φ = 1133837692.

The previous prime is 1134345631. The next prime is 1134345677. The reversal of 1134345661 is 1665434311.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1134345661 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 (1134345631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250621 + ... + 255106.

It is an arithmetic number, because the mean of its divisors is an integer number (283713408).

Almost surely, 2^1134345661 is an apocalyptic number.

It is an amenable number.

1134345661 is a deficient number, since it is larger than the sum of its proper divisors (507971).

1134345661 is an equidigital number, since it uses as much as digits as its factorization.

1134345661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507970.

The product of its digits is 25920, while the sum is 34.

The square root of 1134345661 is about 33680.0484114854. The cubic root of 1134345661 is about 1042.9139374505.

Adding to 1134345661 its reverse (1665434311), we get a palindrome (2799779972).

The spelling of 1134345661 in words is "one billion, one hundred thirty-four million, three hundred forty-five thousand, six hundred sixty-one".