312453445 has 4 divisors (see below), whose sum is σ = 374944140. Its totient is φ = 249962752.

The previous prime is 312453443. The next prime is 312453451. The reversal of 312453445 is 544354213.

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 234978241 + 77475204 = 15329^2 + 8802^2 .

It is a cyclic number.

It is not a de Polignac number, because 312453445 - 2¹ = 312453443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312453443) 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, 31245340 + ... + 31245349.

It is an arithmetic number, because the mean of its divisors is an integer number (93736035).

Almost surely, 2^312453445 is an apocalyptic number.

It is an amenable number.

312453445 is a deficient number, since it is larger than the sum of its proper divisors (62490695).

312453445 is an equidigital number, since it uses as much as digits as its factorization.

312453445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62490694.

The product of its digits is 28800, while the sum is 31.

The square root of 312453445 is about 17676.3527063702. The cubic root of 312453445 is about 678.5707038853.

The spelling of 312453445 in words is "three hundred twelve million, four hundred fifty-three thousand, four hundred forty-five".