31729053 has 8 divisors (see below), whose sum is σ = 42399808. Its totient is φ = 21105504.

The previous prime is 31729051. The next prime is 31729057. The reversal of 31729053 is 35092713.

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

It is not a de Polignac number, because 31729053 - 2¹ = 31729051 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 31729053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31729051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10201 + ... + 12942.

It is an arithmetic number, because the mean of its divisors is an integer number (5299976).

Almost surely, 2^31729053 is an apocalyptic number.

It is an amenable number.

31729053 is a deficient number, since it is larger than the sum of its proper divisors (10670755).

31729053 is a wasteful number, since it uses less digits than its factorization.

31729053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23603.

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 31729053 is about 5632.8547824349. The cubic root of 31729053 is about 316.5816245628.

The spelling of 31729053 in words is "thirty-one million, seven hundred twenty-nine thousand, fifty-three".