124422251 has 4 divisors (see below), whose sum is σ = 128435904. Its totient is φ = 120408600.

The previous prime is 124422247. The next prime is 124422257. The reversal of 124422251 is 152224421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 152224421 = 103 ⋅1477907.

It is a cyclic number.

It is not a de Polignac number, because 124422251 - 2² = 124422247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124422257) 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, 2006780 + ... + 2006841.

It is an arithmetic number, because the mean of its divisors is an integer number (32108976).

Almost surely, 2^124422251 is an apocalyptic number.

124422251 is a deficient number, since it is larger than the sum of its proper divisors (4013653).

124422251 is an equidigital number, since it uses as much as digits as its factorization.

124422251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4013652.

The product of its digits is 1280, while the sum is 23.

The square root of 124422251 is about 11154.4722421099. The cubic root of 124422251 is about 499.2284781203.

Adding to 124422251 its reverse (152224421), we get a palindrome (276646672).

The spelling of 124422251 in words is "one hundred twenty-four million, four hundred twenty-two thousand, two hundred fifty-one".