31135468 has 48 divisors (see below), whose sum is σ = 69995520. Its totient is φ = 11778624.

The previous prime is 31135457. The next prime is 31135469. The reversal of 31135468 is 86453113.

It is not an unprimeable number, because it can be changed into a prime (31135469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6513 + ... + 10231.

It is an arithmetic number, because the mean of its divisors is an integer number (1458240).

Almost surely, 2^31135468 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 31135468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34997760).

31135468 is an abundant number, since it is smaller than the sum of its proper divisors (38860052).

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

31135468 is a wasteful number, since it uses less digits than its factorization.

31135468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3766 (or 3764 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 31135468 is about 5579.9164868302. The cubic root of 31135468 is about 314.5949880024.

The spelling of 31135468 in words is "thirty-one million, one hundred thirty-five thousand, four hundred sixty-eight".