31225234 has 8 divisors (see below), whose sum is σ = 46932480. Its totient is φ = 15581076.

The previous prime is 31225213. The next prime is 31225247. The reversal of 31225234 is 43252213.

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

It is a super-3 number, since 3×31225234³ (a number of 23 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14514 + ... + 16525.

It is an arithmetic number, because the mean of its divisors is an integer number (5866560).

Almost surely, 2^31225234 is an apocalyptic number.

31225234 is a deficient number, since it is larger than the sum of its proper divisors (15707246).

31225234 is a wasteful number, since it uses less digits than its factorization.

31225234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31544.

The product of its digits is 1440, while the sum is 22.

The square root of 31225234 is about 5587.9543663133. The cubic root of 31225234 is about 314.8970319369.

Adding to 31225234 its reverse (43252213), we get a palindrome (74477447).

The spelling of 31225234 in words is "thirty-one million, two hundred twenty-five thousand, two hundred thirty-four".