2312551 has 4 divisors (see below), whose sum is σ = 2315632. Its totient is φ = 2309472.

The previous prime is 2312539. The next prime is 2312573. The reversal of 2312551 is 1552132.

2312551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2312551 - 2¹⁹ = 1788263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406 + ... + 2188.

It is an arithmetic number, because the mean of its divisors is an integer number (578908).

2^2312551 is an apocalyptic number.

2312551 is a deficient number, since it is larger than the sum of its proper divisors (3081).

2312551 is a wasteful number, since it uses less digits than its factorization.

2312551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3080.

The product of its digits is 300, while the sum is 19.

The square root of 2312551 is about 1520.7074011788. The cubic root of 2312551 is about 132.2402839479.

Adding to 2312551 its reverse (1552132), we get a palindrome (3864683).

The spelling of 2312551 in words is "two million, three hundred twelve thousand, five hundred fifty-one".