1165076243 has 4 divisors (see below), whose sum is σ = 1165244640. Its totient is φ = 1164907848.

The previous prime is 1165076207. The next prime is 1165076251. The reversal of 1165076243 is 3426705611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1165076243 - 2⁶ = 1165076179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1165076273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73355 + ... + 87812.

It is an arithmetic number, because the mean of its divisors is an integer number (291311160).

Almost surely, 2^1165076243 is an apocalyptic number.

1165076243 is a deficient number, since it is larger than the sum of its proper divisors (168397).

1165076243 is an equidigital number, since it uses as much as digits as its factorization.

1165076243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168396.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 1165076243 is about 34133.2131947756. The cubic root of 1165076243 is about 1052.2480159865.

The spelling of 1165076243 in words is "one billion, one hundred sixty-five million, seventy-six thousand, two hundred forty-three".