124223641 has 4 divisors (see below), whose sum is σ = 131530932. Its totient is φ = 116916352.

The previous prime is 124223639. The next prime is 124223647. The reversal of 124223641 is 146322421.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46854025 + 77369616 = 6845^2 + 8796^2 .

It is a cyclic number.

It is not a de Polignac number, because 124223641 - 2¹ = 124223639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124223647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3653620 + ... + 3653653.

It is an arithmetic number, because the mean of its divisors is an integer number (32882733).

Almost surely, 2^124223641 is an apocalyptic number.

It is an amenable number.

124223641 is a deficient number, since it is larger than the sum of its proper divisors (7307291).

124223641 is an equidigital number, since it uses as much as digits as its factorization.

124223641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7307290.

The product of its digits is 2304, while the sum is 25.

The square root of 124223641 is about 11145.5659793480. The cubic root of 124223641 is about 498.9627041896.

The spelling of 124223641 in words is "one hundred twenty-four million, two hundred twenty-three thousand, six hundred forty-one".