30800143 has 16 divisors (see below), whose sum is σ = 35546112. Its totient is φ = 26424000.

The previous prime is 30800137. The next prime is 30800153. The reversal of 30800143 is 34100803.

It is a cyclic number.

It is not a de Polignac number, because 30800143 - 2⁵ = 30800111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30800143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30800113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12880 + ... + 15082.

It is an arithmetic number, because the mean of its divisors is an integer number (2221632).

Almost surely, 2^30800143 is an apocalyptic number.

30800143 is a deficient number, since it is larger than the sum of its proper divisors (4745969).

30800143 is a wasteful number, since it uses less digits than its factorization.

30800143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2286.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 30800143 is about 5549.7876535954. The cubic root of 30800143 is about 313.4615265657.

Adding to 30800143 its reverse (34100803), we get a palindrome (64900946).

The spelling of 30800143 in words is "thirty million, eight hundred thousand, one hundred forty-three".