1161737749 has 2 divisors, whose sum is σ = 1161737750. Its totient is φ = 1161737748.

The previous prime is 1161737719. The next prime is 1161737761. The reversal of 1161737749 is 9477371611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 777852100 + 383885649 = 27890^2 + 19593^2 .

It is an emirp because it is prime and its reverse (9477371611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1161737749 - 2¹⁵ = 1161704981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1161737699 and 1161737708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1161737719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580868874 + 580868875.

It is an arithmetic number, because the mean of its divisors is an integer number (580868875).

Almost surely, 2^1161737749 is an apocalyptic number.

It is an amenable number.

1161737749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161737749 is an equidigital number, since it uses as much as digits as its factorization.

1161737749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 222264, while the sum is 46.

The square root of 1161737749 is about 34084.2742184721. The cubic root of 1161737749 is about 1051.2419918583.

The spelling of 1161737749 in words is "one billion, one hundred sixty-one million, seven hundred thirty-seven thousand, seven hundred forty-nine".