1421210115 has 48 divisors (see below), whose sum is σ = 2808999648. Its totient is φ = 658510848.

The previous prime is 1421210093. The next prime is 1421210173. The reversal of 1421210115 is 5110121241.

It is not a de Polignac number, because 1421210115 - 2⁵ = 1421210083 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61509 + ... + 81398.

It is an arithmetic number, because the mean of its divisors is an integer number (58520826).

Almost surely, 2^1421210115 is an apocalyptic number.

1421210115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1421210115 is a deficient number, since it is larger than the sum of its proper divisors (1387789533).

1421210115 is a wasteful number, since it uses less digits than its factorization.

1421210115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142948 (or 142945 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 1421210115 is about 37698.9405023536. The cubic root of 1421210115 is about 1124.3100599230.

Adding to 1421210115 its reverse (5110121241), we get a palindrome (6531331356).

The spelling of 1421210115 in words is "one billion, four hundred twenty-one million, two hundred ten thousand, one hundred fifteen".