312000195 has 24 divisors (see below), whose sum is σ = 540558576. Its totient is φ = 153598848.

The previous prime is 312000193. The next prime is 312000223. The reversal of 312000195 is 591000213.

It is not a de Polignac number, because 312000195 - 2¹ = 312000193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312000193) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59004 + ... + 64073.

It is an arithmetic number, because the mean of its divisors is an integer number (22523274).

Almost surely, 2^312000195 is an apocalyptic number.

312000195 is a deficient number, since it is larger than the sum of its proper divisors (228558381).

312000195 is a wasteful number, since it uses less digits than its factorization.

312000195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123111 (or 123098 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 312000195 is about 17663.5272525054. The cubic root of 312000195 is about 678.2424299033.

It can be divided in two parts, 312000 and 195, that multiplied together give a square (60840000 = 7800²).

The spelling of 312000195 in words is "three hundred twelve million, one hundred ninety-five", and thus it is an aban number.