31346009 has 8 divisors (see below), whose sum is σ = 31965960. Its totient is φ = 30729600.

The previous prime is 31345999. The next prime is 31346027. The reversal of 31346009 is 90064313.

It can be written as a sum of positive squares in 4 ways, for example, as 1315609 + 30030400 = 1147^2 + 5480^2 .

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 31346009 - 2²⁰ = 30297433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31346089) 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, 23069 + ... + 24389.

It is an arithmetic number, because the mean of its divisors is an integer number (3995745).

Almost surely, 2^31346009 is an apocalyptic number.

It is an amenable number.

31346009 is a deficient number, since it is larger than the sum of its proper divisors (619951).

31346009 is a wasteful number, since it uses less digits than its factorization.

31346009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1771.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 31346009 is about 5598.7506642107. The cubic root of 31346009 is about 315.3025027206.

The spelling of 31346009 in words is "thirty-one million, three hundred forty-six thousand, nine".