31343146 has 8 divisors (see below), whose sum is σ = 47039904. Its totient is φ = 15663180.

The previous prime is 31343131. The next prime is 31343153. The reversal of 31343146 is 64134313.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 31343146.

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, 2811 + ... + 8401.

It is an arithmetic number, because the mean of its divisors is an integer number (5879988).

Almost surely, 2^31343146 is an apocalyptic number.

31343146 is a deficient number, since it is larger than the sum of its proper divisors (15696758).

31343146 is a wasteful number, since it uses less digits than its factorization.

31343146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8396.

The product of its digits is 2592, while the sum is 25.

The square root of 31343146 is about 5598.4949763307. The cubic root of 31343146 is about 315.2929030025.

Adding to 31343146 its reverse (64134313), we get a palindrome (95477459).

The spelling of 31343146 in words is "thirty-one million, three hundred forty-three thousand, one hundred forty-six".