1415421521141 has 4 divisors (see below), whose sum is σ = 1421496291852. Its totient is φ = 1409346750432.

The previous prime is 1415421521131. The next prime is 1415421521147. The reversal of 1415421521141 is 1411251245141.

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

It can be written as a sum of positive squares in 2 ways, for example, as 648169908100 + 767251613041 = 805090^2 + 875929^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1415421521141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1415421521098 and 1415421521107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1415421521147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3037385006 + ... + 3037385471.

It is an arithmetic number, because the mean of its divisors is an integer number (355374072963).

Almost surely, 2^{1415421521141} is an apocalyptic number.

It is an amenable number.

1415421521141 is a deficient number, since it is larger than the sum of its proper divisors (6074770711).

1415421521141 is an equidigital number, since it uses as much as digits as its factorization.

1415421521141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6074770710.

The product of its digits is 6400, while the sum is 32.

Adding to 1415421521141 its reverse (1411251245141), we get a palindrome (2826672766282).

The spelling of 1415421521141 in words is "one trillion, four hundred fifteen billion, four hundred twenty-one million, five hundred twenty-one thousand, one hundred forty-one".