1165461101 has 4 divisors (see below), whose sum is σ = 1331955552. Its totient is φ = 998966652.

The previous prime is 1165461091. The next prime is 1165461137. The reversal of 1165461101 is 1011645611.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1011645611 = 16453 ⋅61487.

It is a cyclic number.

It is not a de Polignac number, because 1165461101 - 2¹⁴ = 1165444717 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 (1165461701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83247215 + ... + 83247228.

It is an arithmetic number, because the mean of its divisors is an integer number (332988888).

Almost surely, 2^1165461101 is an apocalyptic number.

It is an amenable number.

1165461101 is a deficient number, since it is larger than the sum of its proper divisors (166494451).

1165461101 is an equidigital number, since it uses as much as digits as its factorization.

1165461101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166494450.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 1165461101 is about 34138.8503174902. The cubic root of 1165461101 is about 1052.3638657680.

The spelling of 1165461101 in words is "one billion, one hundred sixty-five million, four hundred sixty-one thousand, one hundred one".