30955 has 8 divisors (see below), whose sum is σ = 38304. Its totient is φ = 24000.

The previous prime is 30949. The next prime is 30971. The reversal of 30955 is 55903.

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

It is a de Polignac number, because none of the positive numbers 2^k-30955 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a zygodrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130 + ... + 280.

It is an arithmetic number, because the mean of its divisors is an integer number (4788).

2³⁰⁹⁵⁵ is an apocalyptic number.

30955 is a deficient number, since it is larger than the sum of its proper divisors (7349).

30955 is a wasteful number, since it uses less digits than its factorization.

30955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197.

The product of its (nonzero) digits is 675, while the sum is 22.

The square root of 30955 is about 175.9403307943. The cubic root of 30955 is about 31.3985989341.

The spelling of 30955 in words is "thirty thousand, nine hundred fifty-five".