312135136 has 24 divisors (see below), whose sum is σ = 620857440. Its totient is φ = 154457088.

The previous prime is 312135121. The next prime is 312135143. The reversal of 312135136 is 631531213.

It is a self number, because there is not a number n which added to its sum of digits gives 312135136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47176 + ... + 53383.

It is an arithmetic number, because the mean of its divisors is an integer number (25869060).

Almost surely, 2^312135136 is an apocalyptic number.

It is an amenable number.

312135136 is a deficient number, since it is larger than the sum of its proper divisors (308722304).

312135136 is a wasteful number, since it uses less digits than its factorization.

312135136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100666 (or 100658 counting only the distinct ones).

The product of its digits is 1620, while the sum is 25.

The square root of 312135136 is about 17667.3466032678. The cubic root of 312135136 is about 678.3401964237.

Adding to 312135136 its reverse (631531213), we get a palindrome (943666349).

The spelling of 312135136 in words is "three hundred twelve million, one hundred thirty-five thousand, one hundred thirty-six".