2154142104251 has 8 divisors (see below), whose sum is σ = 2155245926400. Its totient is φ = 2153038458472.

The previous prime is 2154142104217. The next prime is 2154142104337. The reversal of 2154142104251 is 1524012414512.

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 2154142104251 - 2¹⁰ = 2154142103227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2154142104151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29238206 + ... + 29311788.

It is an arithmetic number, because the mean of its divisors is an integer number (269405740800).

Almost surely, 2^{2154142104251} is an apocalyptic number.

2154142104251 is a deficient number, since it is larger than the sum of its proper divisors (1103822149).

2154142104251 is a wasteful number, since it uses less digits than its factorization.

2154142104251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88185.

The product of its (nonzero) digits is 12800, while the sum is 32.

Adding to 2154142104251 its reverse (1524012414512), we get a palindrome (3678154518763).

The spelling of 2154142104251 in words is "two trillion, one hundred fifty-four billion, one hundred forty-two million, one hundred four thousand, two hundred fifty-one".