124662121 has 4 divisors (see below), whose sum is σ = 125351044. Its totient is φ = 123973200.

The previous prime is 124662113. The next prime is 124662149. The reversal of 124662121 is 121266421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121266421 = 199 ⋅609379.

It can be written as a sum of positive squares in 2 ways, for example, as 1784896 + 122877225 = 1336^2 + 11085^2 .

It is a cyclic number.

It is not a de Polignac number, because 124662121 - 2³ = 124662113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124662521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344190 + ... + 344551.

It is an arithmetic number, because the mean of its divisors is an integer number (31337761).

Almost surely, 2^124662121 is an apocalyptic number.

It is an amenable number.

124662121 is a deficient number, since it is larger than the sum of its proper divisors (688923).

124662121 is an equidigital number, since it uses as much as digits as its factorization.

124662121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688922.

The product of its digits is 1152, while the sum is 25.

The square root of 124662121 is about 11165.2192544526. The cubic root of 124662121 is about 499.5490881459.

The spelling of 124662121 in words is "one hundred twenty-four million, six hundred sixty-two thousand, one hundred twenty-one".