124223557 has 2 divisors, whose sum is σ = 124223558. Its totient is φ = 124223556.

The previous prime is 124223551. The next prime is 124223587. The reversal of 124223557 is 755322421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118396161 + 5827396 = 10881^2 + 2414^2 .

It is a cyclic number.

It is not a de Polignac number, because 124223557 - 2³ = 124223549 is a prime.

It is a super-2 number, since 2×124223557² = 30862984227464498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124223551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62111778 + 62111779.

It is an arithmetic number, because the mean of its divisors is an integer number (62111779).

Almost surely, 2^124223557 is an apocalyptic number.

It is an amenable number.

124223557 is a deficient number, since it is larger than the sum of its proper divisors (1).

124223557 is an equidigital number, since it uses as much as digits as its factorization.

124223557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16800, while the sum is 31.

The square root of 124223557 is about 11145.5622110327. The cubic root of 124223557 is about 498.9625917234.

Adding to 124223557 its reverse (755322421), we get a palindrome (879545978).

The spelling of 124223557 in words is "one hundred twenty-four million, two hundred twenty-three thousand, five hundred fifty-seven".