3131534064 has 120 divisors (see below), whose sum is σ = 8359219440. Its totient is φ = 1010042880.

The previous prime is 3131534059. The next prime is 3131534093. The reversal of 3131534064 is 4604351313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15896014 + ... + 15896210.

It is an arithmetic number, because the mean of its divisors is an integer number (69660162).

Almost surely, 2^3131534064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3131534064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4179609720).

3131534064 is an abundant number, since it is smaller than the sum of its proper divisors (5227685376).

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

3131534064 is a wasteful number, since it uses less digits than its factorization.

3131534064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 352 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 3131534064 is about 55960.1113651501. Note that the first 3 decimals coincide. The cubic root of 3131534064 is about 1463.0271314228.

Adding to 3131534064 its reverse (4604351313), we get a palindrome (7735885377).

The spelling of 3131534064 in words is "three billion, one hundred thirty-one million, five hundred thirty-four thousand, sixty-four".