31343058 has 32 divisors (see below), whose sum is σ = 69909120. Its totient is φ = 10409040.

The previous prime is 31343057. The next prime is 31343063. The reversal of 31343058 is 85034313.

It is a happy number.

It is a super-3 number, since 3×31343058³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (31343057) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 16203 + ... + 18033.

It is an arithmetic number, because the mean of its divisors is an integer number (2184660).

Almost surely, 2^31343058 is an apocalyptic number.

31343058 is an abundant number, since it is smaller than the sum of its proper divisors (38566062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31343058 is a wasteful number, since it uses less digits than its factorization.

31343058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159 (or 2153 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 31343058 is about 5598.4871170701. The cubic root of 31343058 is about 315.2926079268.

It can be divided in two parts, 3134305 and 8, that added together give a palindrome (3134313).

The spelling of 31343058 in words is "thirty-one million, three hundred forty-three thousand, fifty-eight".