31268109 has 8 divisors (see below), whose sum is σ = 43503552. Its totient is φ = 19939040.

The previous prime is 31268099. The next prime is 31268137. The reversal of 31268109 is 90186213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31268109 - 2⁴ = 31268093 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31260109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226512 + ... + 226649.

It is an arithmetic number, because the mean of its divisors is an integer number (5437944).

Almost surely, 2^31268109 is an apocalyptic number.

It is an amenable number.

31268109 is a deficient number, since it is larger than the sum of its proper divisors (12235443).

31268109 is a wasteful number, since it uses less digits than its factorization.

31268109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453187.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 31268109 is about 5591.7894273658. The cubic root of 31268109 is about 315.0410931525.

The spelling of 31268109 in words is "thirty-one million, two hundred sixty-eight thousand, one hundred nine".