312423641 has 8 divisors (see below), whose sum is σ = 325070280. Its totient is φ = 299901952.

The previous prime is 312423623. The next prime is 312423653. The reversal of 312423641 is 146324213.

It can be written as a sum of positive squares in 4 ways, for example, as 91604041 + 220819600 = 9571^2 + 14860^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312423641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 312423641.

It is not an unprimeable number, because it can be changed into a prime (312423541) 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, 26120 + ... + 36153.

It is an arithmetic number, because the mean of its divisors is an integer number (40633785).

Almost surely, 2^312423641 is an apocalyptic number.

It is an amenable number.

312423641 is a deficient number, since it is larger than the sum of its proper divisors (12646639).

312423641 is a wasteful number, since it uses less digits than its factorization.

312423641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62475.

The product of its digits is 3456, while the sum is 26.

The square root of 312423641 is about 17675.5096390458. The cubic root of 312423641 is about 678.5491275890.

Adding to 312423641 its reverse (146324213), we get a palindrome (458747854).

The spelling of 312423641 in words is "three hundred twelve million, four hundred twenty-three thousand, six hundred forty-one".