2156134142152 has 8 divisors (see below), whose sum is σ = 4042751516550. Its totient is φ = 1078067071072.

The previous prime is 2156134142119. The next prime is 2156134142161. The reversal of 2156134142152 is 2512414316512.

It can be written as a sum of positive squares in only one way, i.e., 1907398539396 + 248735602756 = 1381086^2 + 498734^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2156134142152² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134758383877 + ... + 134758383892.

Almost surely, 2^{2156134142152} is an apocalyptic number.

It is an amenable number.

2156134142152 is a deficient number, since it is larger than the sum of its proper divisors (1886617374398).

2156134142152 is a wasteful number, since it uses less digits than its factorization.

2156134142152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269516767775 (or 269516767771 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

Adding to 2156134142152 its reverse (2512414316512), we get a palindrome (4668548458664).

The spelling of 2156134142152 in words is "two trillion, one hundred fifty-six billion, one hundred thirty-four million, one hundred forty-two thousand, one hundred fifty-two".