2141542001225 has 18 divisors (see below), whose sum is σ = 2918868655710. Its totient is φ = 1557485089600.

The previous prime is 2141542001219. The next prime is 2141542001227. The reversal of 2141542001225 is 5221002451412.

It can be written as a sum of positive squares in 3 ways, for example, as 592087158784 + 1549454842441 = 769472^2 + 1244771^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2141542001225 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2141542001227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 353970860 + ... + 353976909.

Almost surely, 2^{2141542001225} is an apocalyptic number.

2141542001225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2141542001225 is a deficient number, since it is larger than the sum of its proper divisors (777326654485).

2141542001225 is a wasteful number, since it uses less digits than its factorization.

2141542001225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707947801 (or 707947785 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 2141542001225 its reverse (5221002451412), we get a palindrome (7362544452637).

The spelling of 2141542001225 in words is "two trillion, one hundred forty-one billion, five hundred forty-two million, one thousand, two hundred twenty-five".