2154333512453 has 2 divisors, whose sum is σ = 2154333512454. Its totient is φ = 2154333512452.

The previous prime is 2154333512339. The next prime is 2154333512483. The reversal of 2154333512453 is 3542153334512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1948723865089 + 205609647364 = 1395967^2 + 453442^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2154333512453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2154333512453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2154333512483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077166756226 + 1077166756227.

It is an arithmetic number, because the mean of its divisors is an integer number (1077166756227).

Almost surely, 2^{2154333512453} is an apocalyptic number.

It is an amenable number.

2154333512453 is a deficient number, since it is larger than the sum of its proper divisors (1).

2154333512453 is an equidigital number, since it uses as much as digits as its factorization.

2154333512453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648000, while the sum is 41.

Adding to 2154333512453 its reverse (3542153334512), we get a palindrome (5696486846965).

The spelling of 2154333512453 in words is "two trillion, one hundred fifty-four billion, three hundred thirty-three million, five hundred twelve thousand, four hundred fifty-three".