2163156154 has 4 divisors (see below), whose sum is σ = 3244734234. Its totient is φ = 1081578076.

The previous prime is 2163156119. The next prime is 2163156167. The reversal of 2163156154 is 4516513612.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1598000625 + 565155529 = 39975^2 + 23773^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540789037 + ... + 540789040.

Almost surely, 2^2163156154 is an apocalyptic number.

2163156154 is a deficient number, since it is larger than the sum of its proper divisors (1081578080).

2163156154 is a wasteful number, since it uses less digits than its factorization.

2163156154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081578079.

The product of its digits is 21600, while the sum is 34.

The square root of 2163156154 is about 46509.7425707776. The cubic root of 2163156154 is about 1293.2901120256.

Adding to 2163156154 its reverse (4516513612), we get a palindrome (6679669766).

The spelling of 2163156154 in words is "two billion, one hundred sixty-three million, one hundred fifty-six thousand, one hundred fifty-four".