124121449 has 2 divisors, whose sum is σ = 124121450. Its totient is φ = 124121448.

The previous prime is 124121441. The next prime is 124121467. The reversal of 124121449 is 944121421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85433049 + 38688400 = 9243^2 + 6220^2 .

It is a cyclic number.

It is not a de Polignac number, because 124121449 - 2³ = 124121441 is a prime.

It is a super-3 number, since 3×124121449³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (124121441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62060724 + 62060725.

It is an arithmetic number, because the mean of its divisors is an integer number (62060725).

Almost surely, 2^124121449 is an apocalyptic number.

It is an amenable number.

124121449 is a deficient number, since it is larger than the sum of its proper divisors (1).

124121449 is an equidigital number, since it uses as much as digits as its factorization.

124121449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 28.

The square root of 124121449 is about 11140.9806121364. The cubic root of 124121449 is about 498.8258435382.

Subtracting from 124121449 its sum of digits (28), we obtain a palindrome (124121421).

It can be divided in two parts, 12412 and 1449, that added together give a triangular number (13861 = T₁₆₆).

The spelling of 124121449 in words is "one hundred twenty-four million, one hundred twenty-one thousand, four hundred forty-nine".