2154134452 has 6 divisors (see below), whose sum is σ = 3769735298. Its totient is φ = 1077067224.

The previous prime is 2154134449. The next prime is 2154134453. The reversal of 2154134452 is 2544314512.

It can be written as a sum of positive squares in only one way, i.e., 1947809956 + 206324496 = 44134^2 + 14364^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154134453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269266803 + ... + 269266810.

Almost surely, 2^2154134452 is an apocalyptic number.

It is an amenable number.

2154134452 is a deficient number, since it is larger than the sum of its proper divisors (1615600846).

2154134452 is a wasteful number, since it uses less digits than its factorization.

2154134452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538533617 (or 538533615 counting only the distinct ones).

The product of its digits is 19200, while the sum is 31.

The square root of 2154134452 is about 46412.6540072856. The cubic root of 2154134452 is about 1291.4896662372.

Adding to 2154134452 its reverse (2544314512), we get a palindrome (4698448964).

The spelling of 2154134452 in words is "two billion, one hundred fifty-four million, one hundred thirty-four thousand, four hundred fifty-two".