31424254 has 4 divisors (see below), whose sum is σ = 47136384. Its totient is φ = 15712126.

The previous prime is 31424251. The next prime is 31424287. The reversal of 31424254 is 45242413.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31424251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7856062 + ... + 7856065.

It is an arithmetic number, because the mean of its divisors is an integer number (11784096).

Almost surely, 2^31424254 is an apocalyptic number.

31424254 is a deficient number, since it is larger than the sum of its proper divisors (15712130).

31424254 is a wasteful number, since it uses less digits than its factorization.

31424254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15712129.

The product of its digits is 3840, while the sum is 25.

The square root of 31424254 is about 5605.7340286532. The cubic root of 31424254 is about 315.5646343920.

Adding to 31424254 its reverse (45242413), we get a palindrome (76666667).

It can be divided in two parts, 3142 and 4254, that added together give a square (7396 = 86²).

The spelling of 31424254 in words is "thirty-one million, four hundred twenty-four thousand, two hundred fifty-four".