1170623543 has 4 divisors (see below), whose sum is σ = 1190464680. Its totient is φ = 1150782408.

The previous prime is 1170623527. The next prime is 1170623563. The reversal of 1170623543 is 3453260711.

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 1170623543 - 2⁴ = 1170623527 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 (1170623563) 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, 9920480 + ... + 9920597.

It is an arithmetic number, because the mean of its divisors is an integer number (297616170).

Almost surely, 2^1170623543 is an apocalyptic number.

1170623543 is a deficient number, since it is larger than the sum of its proper divisors (19841137).

1170623543 is an equidigital number, since it uses as much as digits as its factorization.

1170623543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19841136.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 1170623543 is about 34214.3762620335. The cubic root of 1170623543 is about 1053.9154020558.

The spelling of 1170623543 in words is "one billion, one hundred seventy million, six hundred twenty-three thousand, five hundred forty-three".