1165413511 has 2 divisors, whose sum is σ = 1165413512. Its totient is φ = 1165413510.

The previous prime is 1165413497. The next prime is 1165413533. The reversal of 1165413511 is 1153145611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1165413511 - 2¹⁹ = 1164889223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1165413511.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1165410511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582706755 + 582706756.

It is an arithmetic number, because the mean of its divisors is an integer number (582706756).

Almost surely, 2^1165413511 is an apocalyptic number.

1165413511 is a deficient number, since it is larger than the sum of its proper divisors (1).

1165413511 is an equidigital number, since it uses as much as digits as its factorization.

1165413511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 28.

The square root of 1165413511 is about 34138.1533038915. The cubic root of 1165413511 is about 1052.3495416297.

The spelling of 1165413511 in words is "one billion, one hundred sixty-five million, four hundred thirteen thousand, five hundred eleven".