2312557 has 4 divisors (see below), whose sum is σ = 2490460. Its totient is φ = 2134656.

The previous prime is 2312539. The next prime is 2312573. The reversal of 2312557 is 7552132.

2312557 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.

It can be written as a sum of positive squares in 2 ways, for example, as 599076 + 1713481 = 774^2 + 1309^2 .

It is a cyclic number.

It is not a de Polignac number, because 2312557 - 2¹¹ = 2310509 is a prime.

It is a Duffinian number.

2312557 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2313557) 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, 88932 + ... + 88957.

It is an arithmetic number, because the mean of its divisors is an integer number (622615).

2^2312557 is an apocalyptic number.

It is an amenable number.

2312557 is a deficient number, since it is larger than the sum of its proper divisors (177903).

2312557 is a wasteful number, since it uses less digits than its factorization.

2312557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177902.

The product of its digits is 2100, while the sum is 25.

The square root of 2312557 is about 1520.7093739436. The cubic root of 2312557 is about 132.2403983152.

Adding to 2312557 its reverse (7552132), we get a palindrome (9864689).

The spelling of 2312557 in words is "two million, three hundred twelve thousand, five hundred fifty-seven".