31359057 has 4 divisors (see below), whose sum is σ = 41812080. Its totient is φ = 20906036.

The previous prime is 31359047. The next prime is 31359089. The reversal of 31359057 is 75095313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31359057 - 2¹¹ = 31357009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31359007) 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 3 ways as a sum of consecutive naturals, for example, 5226507 + ... + 5226512.

It is an arithmetic number, because the mean of its divisors is an integer number (10453020).

Almost surely, 2^31359057 is an apocalyptic number.

It is an amenable number.

31359057 is a deficient number, since it is larger than the sum of its proper divisors (10453023).

31359057 is a wasteful number, since it uses less digits than its factorization.

31359057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10453022.

The product of its (nonzero) digits is 14175, while the sum is 33.

The square root of 31359057 is about 5599.9158029385. The cubic root of 31359057 is about 315.3462456242.

The spelling of 31359057 in words is "thirty-one million, three hundred fifty-nine thousand, fifty-seven".