30181085 has 16 divisors (see below), whose sum is σ = 40580352. Its totient is φ = 21355200.

The previous prime is 30181033. The next prime is 30181117. The reversal of 30181085 is 58018103.

It is not a de Polignac number, because 30181085 - 2¹⁰ = 30180061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5381 + ... + 9450.

It is an arithmetic number, because the mean of its divisors is an integer number (2536272).

Almost surely, 2^30181085 is an apocalyptic number.

It is an amenable number.

30181085 is a deficient number, since it is larger than the sum of its proper divisors (10399267).

30181085 is a wasteful number, since it uses less digits than its factorization.

30181085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14884.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 30181085 is about 5493.7314277274. The cubic root of 30181085 is about 311.3471893175.

Adding to 30181085 its reverse (58018103), we get a palindrome (88199188).

The spelling of 30181085 in words is "thirty million, one hundred eighty-one thousand, eighty-five".