31114217 has 4 divisors (see below), whose sum is σ = 31130880. Its totient is φ = 31097556.

The previous prime is 31114189. The next prime is 31114249. The reversal of 31114217 is 71241113.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71241113 = 1039 ⋅68567.

It is a cyclic number.

It is not a de Polignac number, because 31114217 - 2²⁰ = 30065641 is a prime.

It is a pancake number, because a pancake can be divided into 31114217 parts by 7888 straight cuts.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31111217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5117 + ... + 9402.

It is an arithmetic number, because the mean of its divisors is an integer number (7782720).

Almost surely, 2^31114217 is an apocalyptic number.

It is an amenable number.

31114217 is a deficient number, since it is larger than the sum of its proper divisors (16663).

31114217 is a wasteful number, since it uses less digits than its factorization.

31114217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16662.

The product of its digits is 168, while the sum is 20.

The square root of 31114217 is about 5578.0119218230. The cubic root of 31114217 is about 314.5233978395.

The spelling of 31114217 in words is "thirty-one million, one hundred fourteen thousand, two hundred seventeen".