121170543 has 32 divisors (see below), whose sum is σ = 193939200. Its totient is φ = 66479616.

The previous prime is 121170529. The next prime is 121170547. The reversal of 121170543 is 345071121.

It is not a de Polignac number, because 121170543 - 2⁶ = 121170479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121170547) 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 31 ways as a sum of consecutive naturals, for example, 7788 + ... + 17406.

It is an arithmetic number, because the mean of its divisors is an integer number (6060600).

Almost surely, 2^121170543 is an apocalyptic number.

121170543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121170543 is a deficient number, since it is larger than the sum of its proper divisors (72768657).

121170543 is a wasteful number, since it uses less digits than its factorization.

121170543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9671.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 121170543 is about 11007.7492249778. The cubic root of 121170543 is about 494.8410100554.

The spelling of 121170543 in words is "one hundred twenty-one million, one hundred seventy thousand, five hundred forty-three".