312145144 has 32 divisors (see below), whose sum is σ = 611994240. Its totient is φ = 148975200.

The previous prime is 312145133. The next prime is 312145147. The reversal of 312145144 is 441541213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312145147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103579 + ... + 106549.

It is an arithmetic number, because the mean of its divisors is an integer number (19124820).

Almost surely, 2^312145144 is an apocalyptic number.

It is an amenable number.

312145144 is a deficient number, since it is larger than the sum of its proper divisors (299849096).

312145144 is a wasteful number, since it uses less digits than its factorization.

312145144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3571 (or 3567 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 312145144 is about 17667.6298353797. The cubic root of 312145144 is about 678.3474462282.

Adding to 312145144 its reverse (441541213), we get a palindrome (753686357).

The spelling of 312145144 in words is "three hundred twelve million, one hundred forty-five thousand, one hundred forty-four".