312145545 has 24 divisors (see below), whose sum is σ = 503850816. Its totient is φ = 165011968.

The previous prime is 312145481. The next prime is 312145573. The reversal of 312145545 is 545541213.

It is not a de Polignac number, because 312145545 - 2⁶ = 312145481 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 884089 + ... + 884441.

It is an arithmetic number, because the mean of its divisors is an integer number (20993784).

Almost surely, 2^312145545 is an apocalyptic number.

It is an amenable number.

312145545 is a deficient number, since it is larger than the sum of its proper divisors (191705271).

312145545 is an equidigital number, since it uses as much as digits as its factorization.

312145545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881 (or 528 counting only the distinct ones).

The product of its digits is 12000, while the sum is 30.

The square root of 312145545 is about 17667.6411838140. The cubic root of 312145545 is about 678.3477367097.

Adding to 312145545 its reverse (545541213), we get a palindrome (857686758).

The spelling of 312145545 in words is "three hundred twelve million, one hundred forty-five thousand, five hundred forty-five".