312130149 has 32 divisors (see below), whose sum is σ = 452998656. Its totient is φ = 190417920.

The previous prime is 312130141. The next prime is 312130151. The reversal of 312130149 is 941031213.

It is not a de Polignac number, because 312130149 - 2³ = 312130141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312130141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 471879 + ... + 472539.

It is an arithmetic number, because the mean of its divisors is an integer number (14156208).

Almost surely, 2^312130149 is an apocalyptic number.

It is an amenable number.

312130149 is a deficient number, since it is larger than the sum of its proper divisors (140868507).

312130149 is a wasteful number, since it uses less digits than its factorization.

312130149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 312130149 is about 17667.2054666266. The cubic root of 312130149 is about 678.3365837784.

The spelling of 312130149 in words is "three hundred twelve million, one hundred thirty thousand, one hundred forty-nine".