1421718115 has 4 divisors (see below), whose sum is σ = 1706061744. Its totient is φ = 1137374488.

The previous prime is 1421718107. The next prime is 1421718121. The reversal of 1421718115 is 5118171241.

1421718115 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5118171241 = 547 ⋅9356803.

It is a cyclic number.

It is not a de Polignac number, because 1421718115 - 2³ = 1421718107 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 142171807 + ... + 142171816.

It is an arithmetic number, because the mean of its divisors is an integer number (426515436).

Almost surely, 2^1421718115 is an apocalyptic number.

1421718115 is a deficient number, since it is larger than the sum of its proper divisors (284343629).

1421718115 is an equidigital number, since it uses as much as digits as its factorization.

1421718115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284343628.

The product of its digits is 2240, while the sum is 31.

The square root of 1421718115 is about 37705.6774902666. The cubic root of 1421718115 is about 1124.4440024618. Note that the first 3 decimals are identical.

Adding to 1421718115 its reverse (5118171241), we get a palindrome (6539889356).

The spelling of 1421718115 in words is "one billion, four hundred twenty-one million, seven hundred eighteen thousand, one hundred fifteen".