31135214 has 8 divisors (see below), whose sum is σ = 50948568. Its totient is φ = 14152360.

The previous prime is 31135213. The next prime is 31135231. The reversal of 31135214 is 41253113.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31135213) 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, 707597 + ... + 707640.

It is an arithmetic number, because the mean of its divisors is an integer number (6368571).

Almost surely, 2^31135214 is an apocalyptic number.

31135214 is a deficient number, since it is larger than the sum of its proper divisors (19813354).

31135214 is a wasteful number, since it uses less digits than its factorization.

31135214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415250.

The product of its digits is 360, while the sum is 20.

The square root of 31135214 is about 5579.8937265866. The cubic root of 31135214 is about 314.5941325221.

Adding to 31135214 its reverse (41253113), we get a palindrome (72388327).

The spelling of 31135214 in words is "thirty-one million, one hundred thirty-five thousand, two hundred fourteen".