30141895 has 16 divisors (see below), whose sum is σ = 42120000. Its totient is φ = 20277504.

The previous prime is 30141887. The next prime is 30141913. The reversal of 30141895 is 59814103.

It is a cyclic number.

It is not a de Polignac number, because 30141895 - 2³ = 30141887 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6270 + ... + 9979.

It is an arithmetic number, because the mean of its divisors is an integer number (2632500).

Almost surely, 2^30141895 is an apocalyptic number.

30141895 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30141895 is a deficient number, since it is larger than the sum of its proper divisors (11978105).

30141895 is a wasteful number, since it uses less digits than its factorization.

30141895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16314.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 30141895 is about 5490.1634766189. The cubic root of 30141895 is about 311.2123699823.

Adding to 30141895 its reverse (59814103), we get a palindrome (89955998).

The spelling of 30141895 in words is "thirty million, one hundred forty-one thousand, eight hundred ninety-five".