312102005 has 8 divisors (see below), whose sum is σ = 374776224. Its totient is φ = 249512400.

The previous prime is 312101981. The next prime is 312102023. The reversal of 312102005 is 500201213.

It is a happy number.

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

It is not a de Polignac number, because 312102005 - 2⁶ = 312101941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12731 + ... + 28040.

It is an arithmetic number, because the mean of its divisors is an integer number (46847028).

Almost surely, 2^312102005 is an apocalyptic number.

It is an amenable number.

312102005 is a deficient number, since it is larger than the sum of its proper divisors (62674219).

312102005 is a wasteful number, since it uses less digits than its factorization.

312102005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42307.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 312102005 is about 17666.4089446611. The cubic root of 312102005 is about 678.3161951908.

Adding to 312102005 its reverse (500201213), we get a palindrome (812303218).

The spelling of 312102005 in words is "three hundred twelve million, one hundred two thousand, five".