312534534 has 128 divisors (see below), whose sum is σ = 757693440. Its totient is φ = 85003776.

The previous prime is 312534533. The next prime is 312534539. The reversal of 312534534 is 435435213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312534533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1806472 + ... + 1806644.

It is an arithmetic number, because the mean of its divisors is an integer number (5919480).

Almost surely, 2^312534534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312534534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (378846720).

312534534 is an abundant number, since it is smaller than the sum of its proper divisors (445158906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312534534 is a wasteful number, since it uses less digits than its factorization.

312534534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286.

The product of its digits is 21600, while the sum is 30.

The square root of 312534534 is about 17678.6462717030. The cubic root of 312534534 is about 678.6294004808.

Adding to 312534534 its reverse (435435213), we get a palindrome (747969747).

The spelling of 312534534 in words is "three hundred twelve million, five hundred thirty-four thousand, five hundred thirty-four".