1136740661 has 24 divisors (see below), whose sum is σ = 1405931904. Its totient is φ = 914353440.

The previous prime is 1136740589. The next prime is 1136740679. The reversal of 1136740661 is 1660476311.

It is a de Polignac number, because none of the positive numbers 2^k-1136740661 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 (1136742661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50216 + ... + 69246.

It is an arithmetic number, because the mean of its divisors is an integer number (58580496).

Almost surely, 2^1136740661 is an apocalyptic number.

It is an amenable number.

1136740661 is a deficient number, since it is larger than the sum of its proper divisors (269191243).

1136740661 is a wasteful number, since it uses less digits than its factorization.

1136740661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19121 (or 19114 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 1136740661 is about 33715.5848384690. The cubic root of 1136740661 is about 1043.6474067185.

The spelling of 1136740661 in words is "one billion, one hundred thirty-six million, seven hundred forty thousand, six hundred sixty-one".