1161687743 has 2 divisors, whose sum is σ = 1161687744. Its totient is φ = 1161687742.

The previous prime is 1161687733. The next prime is 1161687803. The reversal of 1161687743 is 3477861611.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1161687743 - 2⁶ = 1161687679 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1161687694 and 1161687703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1161687733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580843871 + 580843872.

It is an arithmetic number, because the mean of its divisors is an integer number (580843872).

Almost surely, 2^1161687743 is an apocalyptic number.

1161687743 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161687743 is an equidigital number, since it uses as much as digits as its factorization.

1161687743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 44.

The square root of 1161687743 is about 34083.5406464763. The cubic root of 1161687743 is about 1051.2269083734.

The spelling of 1161687743 in words is "one billion, one hundred sixty-one million, six hundred eighty-seven thousand, seven hundred forty-three".