31417212 has 12 divisors (see below), whose sum is σ = 73306856. Its totient is φ = 10472400.

The previous prime is 31417201. The next prime is 31417213. The reversal of 31417212 is 21271413.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31417213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1309039 + ... + 1309062.

Almost surely, 2^31417212 is an apocalyptic number.

It is an amenable number.

31417212 is an abundant number, since it is smaller than the sum of its proper divisors (41889644).

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

31417212 is a wasteful number, since it uses less digits than its factorization.

31417212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2618108 (or 2618106 counting only the distinct ones).

The product of its digits is 336, while the sum is 21.

The square root of 31417212 is about 5605.1058866002. The cubic root of 31417212 is about 315.5410605397.

Adding to 31417212 its reverse (21271413), we get a palindrome (52688625).

The spelling of 31417212 in words is "thirty-one million, four hundred seventeen thousand, two hundred twelve".