312224252545 has 16 divisors (see below), whose sum is σ = 375095640528. Its totient is φ = 249495183360.

The previous prime is 312224252531. The next prime is 312224252603. The reversal of 312224252545 is 545252422213.

It can be written as a sum of positive squares in 8 ways, for example, as 20795947264 + 291428305281 = 144208^2 + 539841^2 .

It is not a de Polignac number, because 312224252545 - 2¹⁵ = 312224219777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26141275 + ... + 26153215.

It is an arithmetic number, because the mean of its divisors is an integer number (23443477533).

Almost surely, 2^312224252545 is an apocalyptic number.

It is an amenable number.

312224252545 is a deficient number, since it is larger than the sum of its proper divisors (62871387983).

312224252545 is a wasteful number, since it uses less digits than its factorization.

312224252545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17460.

The product of its digits is 192000, while the sum is 37.

Adding to 312224252545 its reverse (545252422213), we get a palindrome (857476674758).

The spelling of 312224252545 in words is "three hundred twelve billion, two hundred twenty-four million, two hundred fifty-two thousand, five hundred forty-five".