122430247 has 4 divisors (see below), whose sum is σ = 122781400. Its totient is φ = 122079096.

The previous prime is 122430221. The next prime is 122430283. The reversal of 122430247 is 742034221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122430247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122430647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175053 + ... + 175750.

It is an arithmetic number, because the mean of its divisors is an integer number (30695350).

Almost surely, 2^122430247 is an apocalyptic number.

122430247 is a deficient number, since it is larger than the sum of its proper divisors (351153).

122430247 is an equidigital number, since it uses as much as digits as its factorization.

122430247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351152.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 122430247 is about 11064.8202425525. The cubic root of 122430247 is about 496.5499111969.

Adding to 122430247 its reverse (742034221), we get a palindrome (864464468).

The spelling of 122430247 in words is "one hundred twenty-two million, four hundred thirty thousand, two hundred forty-seven".