31950105 has 32 divisors (see below), whose sum is σ = 58199040. Its totient is φ = 14815680.

The previous prime is 31950097. The next prime is 31950133. The reversal of 31950105 is 50105913.

It is not a de Polignac number, because 31950105 - 2³ = 31950097 is a prime.

It is a super-2 number, since 2×31950105² = 2041618419022050, which contains 22 as substring.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 415 + ... + 8004.

It is an arithmetic number, because the mean of its divisors is an integer number (1818720).

Almost surely, 2^31950105 is an apocalyptic number.

It is an amenable number.

31950105 is a deficient number, since it is larger than the sum of its proper divisors (26248935).

31950105 is a wasteful number, since it uses less digits than its factorization.

31950105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8461.

The product of its (nonzero) digits is 675, while the sum is 24.

The square root of 31950105 is about 5652.4423924530. The cubic root of 31950105 is about 317.3151175263.

The spelling of 31950105 in words is "thirty-one million, nine hundred fifty thousand, one hundred five".