312135135 has 32 divisors (see below), whose sum is σ = 566146560. Its totient is φ = 145577088.

The previous prime is 312135121. The next prime is 312135143. The reversal of 312135135 is 531531213.

It is not a de Polignac number, because 312135135 - 2⁴ = 312135119 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38419 + ... + 45828.

It is an arithmetic number, because the mean of its divisors is an integer number (17692080).

Almost surely, 2^312135135 is an apocalyptic number.

312135135 is a deficient number, since it is larger than the sum of its proper divisors (254011425).

312135135 is a wasteful number, since it uses less digits than its factorization.

312135135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84287.

The product of its digits is 1350, while the sum is 24.

The square root of 312135135 is about 17667.3465749671. The cubic root of 312135135 is about 678.3401956993.

Adding to 312135135 its reverse (531531213), we get a palindrome (843666348).

The spelling of 312135135 in words is "three hundred twelve million, one hundred thirty-five thousand, one hundred thirty-five".