1421115015 has 16 divisors (see below), whose sum is σ = 2275737696. Its totient is φ = 757276800.

The previous prime is 1421114971. The next prime is 1421115037. The reversal of 1421115015 is 5105111241.

It is not a de Polignac number, because 1421115015 - 2¹² = 1421110919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1421114982 and 1421115000.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 22396 + ... + 57825.

It is an arithmetic number, because the mean of its divisors is an integer number (142233606).

Almost surely, 2^1421115015 is an apocalyptic number.

1421115015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1421115015 is a deficient number, since it is larger than the sum of its proper divisors (854622681).

1421115015 is a wasteful number, since it uses less digits than its factorization.

1421115015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81410.

The product of its (nonzero) digits is 200, while the sum is 21.

The square root of 1421115015 is about 37697.6791725963. The cubic root of 1421115015 is about 1124.2849817002.

Adding to 1421115015 its reverse (5105111241), we get a palindrome (6526226256).

The spelling of 1421115015 in words is "one billion, four hundred twenty-one million, one hundred fifteen thousand, fifteen".