2154134414243 has 8 divisors (see below), whose sum is σ = 2461887251040. Its totient is φ = 1846386414720.

The previous prime is 2154134414219. The next prime is 2154134414279. The reversal of 2154134414243 is 3424144314512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2154134414243 - 2³⁴ = 2136954545059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2154134414197 and 2154134414206.

It is not an unprimeable number, because it can be changed into a prime (2154134414213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198758 + ... + 2085131.

It is an arithmetic number, because the mean of its divisors is an integer number (307735906380).

Almost surely, 2^{2154134414243} is an apocalyptic number.

2154134414243 is a deficient number, since it is larger than the sum of its proper divisors (307752836797).

2154134414243 is a wasteful number, since it uses less digits than its factorization.

2154134414243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2418637.

The product of its digits is 184320, while the sum is 38.

Adding to 2154134414243 its reverse (3424144314512), we get a palindrome (5578278728755).

The spelling of 2154134414243 in words is "two trillion, one hundred fifty-four billion, one hundred thirty-four million, four hundred fourteen thousand, two hundred forty-three".