2132505451 has 4 divisors (see below), whose sum is σ = 2244742600. Its totient is φ = 2020268304.

The previous prime is 2132505437. The next prime is 2132505481. The reversal of 2132505451 is 1545052312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2132505451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2132505481) 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, 56118546 + ... + 56118583.

It is an arithmetic number, because the mean of its divisors is an integer number (561185650).

Almost surely, 2^2132505451 is an apocalyptic number.

2132505451 is a deficient number, since it is larger than the sum of its proper divisors (112237149).

2132505451 is a wasteful number, since it uses less digits than its factorization.

2132505451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112237148.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 2132505451 is about 46179.0585763720. The cubic root of 2132505451 is about 1287.1526346777.

Adding to 2132505451 its reverse (1545052312), we get a palindrome (3677557763).

The spelling of 2132505451 in words is "two billion, one hundred thirty-two million, five hundred five thousand, four hundred fifty-one".