2156134142141 has 4 divisors (see below), whose sum is σ = 2464153305312. Its totient is φ = 1848114978972.

The previous prime is 2156134142119. The next prime is 2156134142161. The reversal of 2156134142141 is 1412414316512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2156134142141 - 2¹⁸ = 2156133879997 is a prime.

It is a super-2 number, since 2×2156134142141² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156134142101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154009581575 + ... + 154009581588.

It is an arithmetic number, because the mean of its divisors is an integer number (616038326328).

Almost surely, 2^{2156134142141} is an apocalyptic number.

It is an amenable number.

2156134142141 is a deficient number, since it is larger than the sum of its proper divisors (308019163171).

2156134142141 is an equidigital number, since it uses as much as digits as its factorization.

2156134142141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308019163170.

The product of its digits is 23040, while the sum is 35.

Adding to 2156134142141 its reverse (1412414316512), we get a palindrome (3568548458653).

The spelling of 2156134142141 in words is "two trillion, one hundred fifty-six billion, one hundred thirty-four million, one hundred forty-two thousand, one hundred forty-one".