30158 has 8 divisors (see below), whose sum is σ = 47952. Its totient is φ = 14176.

The previous prime is 30139. The next prime is 30161. The reversal of 30158 is 85103.

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

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Curzon number.

It is a congruent number.

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, 410 + ... + 477.

It is an arithmetic number, because the mean of its divisors is an integer number (5994).

2³⁰¹⁵⁸ is an apocalyptic number.

30158 is a deficient number, since it is larger than the sum of its proper divisors (17794).

30158 is a wasteful number, since it uses less digits than its factorization.

30158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 30158 is about 173.6605885053. The cubic root of 30158 is about 31.1267787675.

Subtracting 30158 from its reverse (85103), we obtain a palindrome (54945).

The spelling of 30158 in words is "thirty thousand, one hundred fifty-eight".