312461605 has 8 divisors (see below), whose sum is σ = 375077664. Its totient is φ = 249886800.

The previous prime is 312461599. The next prime is 312461609. The reversal of 312461605 is 506164213.

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

It is not a de Polignac number, because 312461605 - 2⁷ = 312461477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312461609) 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, 9990 + ... + 26920.

It is an arithmetic number, because the mean of its divisors is an integer number (46884708).

Almost surely, 2^312461605 is an apocalyptic number.

It is an amenable number.

312461605 is a deficient number, since it is larger than the sum of its proper divisors (62616059).

312461605 is a wasteful number, since it uses less digits than its factorization.

312461605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20627.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 312461605 is about 17676.5835217103. The cubic root of 312461605 is about 678.5766109933.

The spelling of 312461605 in words is "three hundred twelve million, four hundred sixty-one thousand, six hundred five".