31138058 has 8 divisors (see below), whose sum is σ = 53379552. Its totient is φ = 13344876.

The previous prime is 31138057. The next prime is 31138073. The reversal of 31138058 is 85083113.

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

It is a super-3 number, since 3×31138058³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 31138058.

It is not an unprimeable number, because it can be changed into a prime (31138057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1112060 + ... + 1112087.

It is an arithmetic number, because the mean of its divisors is an integer number (6672444).

Almost surely, 2^31138058 is an apocalyptic number.

31138058 is a deficient number, since it is larger than the sum of its proper divisors (22241494).

31138058 is a wasteful number, since it uses less digits than its factorization.

31138058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224156.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 31138058 is about 5580.1485643305. The cubic root of 31138058 is about 314.6037109421.

The spelling of 31138058 in words is "thirty-one million, one hundred thirty-eight thousand, fifty-eight".