124661243 has 12 divisors (see below), whose sum is σ = 145239192. Its totient is φ = 106686720.

The previous prime is 124661239. The next prime is 124661263. The reversal of 124661243 is 342166421.

It is not a de Polignac number, because 124661243 - 2² = 124661239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (124661203) 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 11 ways as a sum of consecutive naturals, for example, 38171 + ... + 41307.

It is an arithmetic number, because the mean of its divisors is an integer number (12103266).

Almost surely, 2^124661243 is an apocalyptic number.

124661243 is a deficient number, since it is larger than the sum of its proper divisors (20577949).

124661243 is an equidigital number, since it uses as much as digits as its factorization.

124661243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3962 (or 3955 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 124661243 is about 11165.1799358541. The cubic root of 124661243 is about 499.5479153622.

The spelling of 124661243 in words is "one hundred twenty-four million, six hundred sixty-one thousand, two hundred forty-three".