31415272 has 24 divisors (see below), whose sum is σ = 68521410. Its totient is φ = 13463520.

The previous prime is 31415261. The next prime is 31415291. The reversal of 31415272 is 27251413.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 28153636 + 3261636 = 5306^2 + 1806^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 39679 + ... + 40462.

Almost surely, 2^31415272 is an apocalyptic number.

It is an amenable number.

31415272 is an abundant number, since it is smaller than the sum of its proper divisors (37106138).

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

31415272 is a wasteful number, since it uses less digits than its factorization.

31415272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80161 (or 80150 counting only the distinct ones).

The product of its digits is 1680, while the sum is 25.

The square root of 31415272 is about 5604.9328274298. The cubic root of 31415272 is about 315.5345655622.

Adding to 31415272 its reverse (27251413), we get a palindrome (58666685).

The spelling of 31415272 in words is "thirty-one million, four hundred fifteen thousand, two hundred seventy-two".