31242254 has 8 divisors (see below), whose sum is σ = 47232768. Its totient is φ = 15498000.

The previous prime is 31242247. The next prime is 31242307. The reversal of 31242254 is 45224213.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 61247 + ... + 61754.

It is an arithmetic number, because the mean of its divisors is an integer number (5904096).

Almost surely, 2^31242254 is an apocalyptic number.

31242254 is a deficient number, since it is larger than the sum of its proper divisors (15990514).

31242254 is a wasteful number, since it uses less digits than its factorization.

31242254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123130.

The product of its digits is 1920, while the sum is 23.

The square root of 31242254 is about 5589.4770775091. The cubic root of 31242254 is about 314.9542353939.

Adding to 31242254 its reverse (45224213), we get a palindrome (76466467).

The spelling of 31242254 in words is "thirty-one million, two hundred forty-two thousand, two hundred fifty-four".