312140324 has 6 divisors (see below), whose sum is σ = 546245574. Its totient is φ = 156070160.

The previous prime is 312140317. The next prime is 312140327. The reversal of 312140324 is 423041213.

It can be written as a sum of positive squares in only one way, i.e., 187416100 + 124724224 = 13690^2 + 11168^2 .

It is a junction number, because it is equal to n+sod(n) for n = 312140296 and 312140305.

It is not an unprimeable number, because it can be changed into a prime (312140327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39017537 + ... + 39017544.

It is an arithmetic number, because the mean of its divisors is an integer number (91040929).

Almost surely, 2^312140324 is an apocalyptic number.

It is an amenable number.

312140324 is a deficient number, since it is larger than the sum of its proper divisors (234105250).

312140324 is a wasteful number, since it uses less digits than its factorization.

312140324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78035085 (or 78035083 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 312140324 is about 17667.4934271956. The cubic root of 312140324 is about 678.3439546350.

Adding to 312140324 its reverse (423041213), we get a palindrome (735181537).

The spelling of 312140324 in words is "three hundred twelve million, one hundred forty thousand, three hundred twenty-four".