124772543 has 4 divisors (see below), whose sum is σ = 142597200. Its totient is φ = 106947888.

The previous prime is 124772533. The next prime is 124772569. The reversal of 124772543 is 345277421.

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 124772543 - 2⁸ = 124772287 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 (124772533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8912318 + ... + 8912331.

It is an arithmetic number, because the mean of its divisors is an integer number (35649300).

Almost surely, 2^124772543 is an apocalyptic number.

124772543 is a deficient number, since it is larger than the sum of its proper divisors (17824657).

124772543 is an equidigital number, since it uses as much as digits as its factorization.

124772543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17824656.

The product of its digits is 47040, while the sum is 35.

The square root of 124772543 is about 11170.1630695348. The cubic root of 124772543 is about 499.6965398611.

The spelling of 124772543 in words is "one hundred twenty-four million, seven hundred seventy-two thousand, five hundred forty-three".