31214473 has 8 divisors (see below), whose sum is σ = 34286400. Its totient is φ = 28285488.

The previous prime is 31214461. The next prime is 31214483. The reversal of 31214473 is 37441213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31214473 - 2⁹ = 31213961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31214423) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 35278 + ... + 36151.

It is an arithmetic number, because the mean of its divisors is an integer number (4285800).

Almost surely, 2^31214473 is an apocalyptic number.

It is an amenable number.

31214473 is a deficient number, since it is larger than the sum of its proper divisors (3071927).

31214473 is a wasteful number, since it uses less digits than its factorization.

31214473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71471.

The product of its digits is 2016, while the sum is 25.

The square root of 31214473 is about 5586.9914086206. The cubic root of 31214473 is about 314.8608539715.

Adding to 31214473 its reverse (37441213), we get a palindrome (68655686).

The spelling of 31214473 in words is "thirty-one million, two hundred fourteen thousand, four hundred seventy-three".