1421251542115 has 4 divisors (see below), whose sum is σ = 1705501850544. Its totient is φ = 1137001233688.

The previous prime is 1421251542097. The next prime is 1421251542127. The reversal of 1421251542115 is 5112451521241.

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

It is a cyclic number.

It is not a de Polignac number, because 1421251542115 - 2⁷ = 1421251541987 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142125154207 + ... + 142125154216.

It is an arithmetic number, because the mean of its divisors is an integer number (426375462636).

Almost surely, 2^{1421251542115} is an apocalyptic number.

1421251542115 is a deficient number, since it is larger than the sum of its proper divisors (284250308429).

1421251542115 is an equidigital number, since it uses as much as digits as its factorization.

1421251542115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284250308428.

The product of its digits is 16000, while the sum is 34.

The spelling of 1421251542115 in words is "one trillion, four hundred twenty-one billion, two hundred fifty-one million, five hundred forty-two thousand, one hundred fifteen".