124772443 has 4 divisors (see below), whose sum is σ = 124798968. Its totient is φ = 124745920.

The previous prime is 124772437. The next prime is 124772477. The reversal of 124772443 is 344277421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344277421 = 17 ⋅20251613.

It is a cyclic number.

It is not a de Polignac number, because 124772443 - 2¹⁷ = 124641371 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124772399 and 124772408.

It is not an unprimeable number, because it can be changed into a prime (124772423) 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, 4093 + ... + 16318.

It is an arithmetic number, because the mean of its divisors is an integer number (31199742).

Almost surely, 2^124772443 is an apocalyptic number.

124772443 is a deficient number, since it is larger than the sum of its proper divisors (26525).

124772443 is an equidigital number, since it uses as much as digits as its factorization.

124772443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26524.

The product of its digits is 37632, while the sum is 34.

The square root of 124772443 is about 11170.1585933236. The cubic root of 124772443 is about 499.6964063658.

The spelling of 124772443 in words is "one hundred twenty-four million, seven hundred seventy-two thousand, four hundred forty-three".