2132812787 has 4 divisors (see below), whose sum is σ = 2437500336. Its totient is φ = 1828125240.

The previous prime is 2132812763. The next prime is 2132812789. The reversal of 2132812787 is 7872182312.

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

It is a cyclic number.

It is not a de Polignac number, because 2132812787 - 2⁸ = 2132812531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2132812789) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 152343764 + ... + 152343777.

It is an arithmetic number, because the mean of its divisors is an integer number (609375084).

Almost surely, 2^2132812787 is an apocalyptic number.

2132812787 is a deficient number, since it is larger than the sum of its proper divisors (304687549).

2132812787 is an equidigital number, since it uses as much as digits as its factorization.

2132812787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304687548.

The product of its digits is 75264, while the sum is 41.

The square root of 2132812787 is about 46182.3861120233. The cubic root of 2132812787 is about 1287.2144663820.

The spelling of 2132812787 in words is "two billion, one hundred thirty-two million, eight hundred twelve thousand, seven hundred eighty-seven".