312345452 has 6 divisors (see below), whose sum is σ = 546604548. Its totient is φ = 156172724.

The previous prime is 312345443. The next prime is 312345461. The reversal of 312345452 is 254543213.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (312345443) and next prime (312345461).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39043178 + ... + 39043185.

It is an arithmetic number, because the mean of its divisors is an integer number (91100758).

Almost surely, 2^312345452 is an apocalyptic number.

It is an amenable number.

312345452 is a deficient number, since it is larger than the sum of its proper divisors (234259096).

312345452 is a wasteful number, since it uses less digits than its factorization.

312345452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78086367 (or 78086365 counting only the distinct ones).

The product of its digits is 14400, while the sum is 29.

The square root of 312345452 is about 17673.2977115195. The cubic root of 312345452 is about 678.4925169516.

Adding to 312345452 its reverse (254543213), we get a palindrome (566888665).

The spelling of 312345452 in words is "three hundred twelve million, three hundred forty-five thousand, four hundred fifty-two".