31253230 has 8 divisors (see below), whose sum is σ = 56255832. Its totient is φ = 12501288.

The previous prime is 31253219. The next prime is 31253267. The reversal of 31253230 is 3235213.

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

It is a junction number, because it is equal to n+sod(n) for n = 31253198 and 31253207.

It is a congruent number.

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, 1562652 + ... + 1562671.

It is an arithmetic number, because the mean of its divisors is an integer number (7031979).

Almost surely, 2^31253230 is an apocalyptic number.

31253230 is a deficient number, since it is larger than the sum of its proper divisors (25002602).

31253230 is a wasteful number, since it uses less digits than its factorization.

31253230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3125330.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 31253230 is about 5590.4588362674. The cubic root of 31253230 is about 314.9911142198.

Adding to 31253230 its reverse (3235213), we get a palindrome (34488443).

The spelling of 31253230 in words is "thirty-one million, two hundred fifty-three thousand, two hundred thirty".