112421501 has 2 divisors, whose sum is σ = 112421502. Its totient is φ = 112421500.

The previous prime is 112421497. The next prime is 112421521. The reversal of 112421501 is 105124211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69322276 + 43099225 = 8326^2 + 6565^2 .

It is an emirp because it is prime and its reverse (105124211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 112421501 - 2² = 112421497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 112421501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112421521) 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 as a sum of consecutive naturals, namely, 56210750 + 56210751.

It is an arithmetic number, because the mean of its divisors is an integer number (56210751).

Almost surely, 2^112421501 is an apocalyptic number.

It is an amenable number.

112421501 is a deficient number, since it is larger than the sum of its proper divisors (1).

112421501 is an equidigital number, since it uses as much as digits as its factorization.

112421501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 112421501 is about 10602.9005937055. The cubic root of 112421501 is about 482.6323847680.

Adding to 112421501 its reverse (105124211), we get a palindrome (217545712).

The spelling of 112421501 in words is "one hundred twelve million, four hundred twenty-one thousand, five hundred one".