2154040132 has 6 divisors (see below), whose sum is σ = 3769570238. Its totient is φ = 1077020064.

The previous prime is 2154040123. The next prime is 2154040193. The reversal of 2154040132 is 2310404512.

It can be written as a sum of positive squares in only one way, i.e., 1173473536 + 980566596 = 34256^2 + 31314^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269255013 + ... + 269255020.

Almost surely, 2^2154040132 is an apocalyptic number.

It is an amenable number.

2154040132 is a deficient number, since it is larger than the sum of its proper divisors (1615530106).

2154040132 is a wasteful number, since it uses less digits than its factorization.

2154040132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538510037 (or 538510035 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2154040132 is about 46411.6378939593. The cubic root of 2154040132 is about 1291.4708164260.

Adding to 2154040132 its reverse (2310404512), we get a palindrome (4464444644).

The spelling of 2154040132 in words is "two billion, one hundred fifty-four million, forty thousand, one hundred thirty-two".