31695042 has 16 divisors (see below), whose sum is σ = 64864800. Its totient is φ = 10319232.

The previous prime is 31695029. The next prime is 31695043. The reversal of 31695042 is 24059613.

It is not an unprimeable number, because it can be changed into a prime (31695043) 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, 61167 + ... + 61682.

It is an arithmetic number, because the mean of its divisors is an integer number (4054050).

Almost surely, 2^31695042 is an apocalyptic number.

31695042 is an abundant number, since it is smaller than the sum of its proper divisors (33169758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31695042 is a wasteful number, since it uses less digits than its factorization.

31695042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122897.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 31695042 is about 5629.8349887008. The cubic root of 31695042 is about 316.4684674180.

The spelling of 31695042 in words is "thirty-one million, six hundred ninety-five thousand, forty-two".