2145142533253 has 2 divisors, whose sum is σ = 2145142533254. Its totient is φ = 2145142533252.

The previous prime is 2145142533211. The next prime is 2145142533293. The reversal of 2145142533253 is 3523352415412.

It is an a-pointer prime, because the next prime (2145142533293) can be obtained adding 2145142533253 to its sum of digits (40).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1717690708449 + 427451824804 = 1310607^2 + 653798^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2145142533253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2145142533293) 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 as a sum of consecutive naturals, namely, 1072571266626 + 1072571266627.

It is an arithmetic number, because the mean of its divisors is an integer number (1072571266627).

Almost surely, 2^{2145142533253} is an apocalyptic number.

It is an amenable number.

2145142533253 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145142533253 is an equidigital number, since it uses as much as digits as its factorization.

2145142533253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432000, while the sum is 40.

Adding to 2145142533253 its reverse (3523352415412), we get a palindrome (5668494948665).

The spelling of 2145142533253 in words is "two trillion, one hundred forty-five billion, one hundred forty-two million, five hundred thirty-three thousand, two hundred fifty-three".