124223531 has 4 divisors (see below), whose sum is σ = 124259064. Its totient is φ = 124188000.

The previous prime is 124223513. The next prime is 124223549. The reversal of 124223531 is 135322421.

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

It is an interprime number because it is at equal distance from previous prime (124223513) and next prime (124223549).

It is a cyclic number.

It is not a de Polignac number, because 124223531 - 2¹⁰ = 124222507 is a prime.

It is a super-2 number, since 2×124223531² = 30862971308215922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124223497 and 124223506.

It is not an unprimeable number, because it can be changed into a prime (124223551) 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, 11870 + ... + 19731.

It is an arithmetic number, because the mean of its divisors is an integer number (31064766).

Almost surely, 2^124223531 is an apocalyptic number.

124223531 is a deficient number, since it is larger than the sum of its proper divisors (35533).

124223531 is an equidigital number, since it uses as much as digits as its factorization.

124223531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35532.

The product of its digits is 1440, while the sum is 23.

The square root of 124223531 is about 11145.5610446491. The cubic root of 124223531 is about 498.9625569125.

Adding to 124223531 its reverse (135322421), we get a palindrome (259545952).

The spelling of 124223531 in words is "one hundred twenty-four million, two hundred twenty-three thousand, five hundred thirty-one".