124220849 has 4 divisors (see below), whose sum is σ = 124366320. Its totient is φ = 124075380.

The previous prime is 124220839. The next prime is 124220893. The reversal of 124220849 is 948022421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 124220849 - 2¹² = 124216753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124220839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71447 + ... + 73164.

It is an arithmetic number, because the mean of its divisors is an integer number (31091580).

Almost surely, 2^124220849 is an apocalyptic number.

It is an amenable number.

124220849 is a deficient number, since it is larger than the sum of its proper divisors (145471).

124220849 is an equidigital number, since it uses as much as digits as its factorization.

124220849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145470.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 124220849 is about 11145.4407270417. The cubic root of 124220849 is about 498.9589660007.

The spelling of 124220849 in words is "one hundred twenty-four million, two hundred twenty thousand, eight hundred forty-nine".