31265089 has 8 divisors (see below), whose sum is σ = 33080000. Its totient is φ = 29467152.

The previous prime is 31265041. The next prime is 31265093. The reversal of 31265089 is 98056213.

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 31265089 - 2⁹ = 31264577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31265029) 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 7 ways as a sum of consecutive naturals, for example, 354 + ... + 7915.

It is an arithmetic number, because the mean of its divisors is an integer number (4135000).

Almost surely, 2^31265089 is an apocalyptic number.

It is an amenable number.

31265089 is a deficient number, since it is larger than the sum of its proper divisors (1814911).

31265089 is a wasteful number, since it uses less digits than its factorization.

31265089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8487.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 31265089 is about 5591.5193820642. The cubic root of 31265089 is about 315.0309501797.

The spelling of 31265089 in words is "thirty-one million, two hundred sixty-five thousand, eighty-nine".