30898143 has 6 divisors (see below), whose sum is σ = 44630664. Its totient is φ = 20598756.

The previous prime is 30898141. The next prime is 30898151. The reversal of 30898143 is 34189803.

It is not a de Polignac number, because 30898143 - 2¹ = 30898141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30898098 and 30898107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30898141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1716555 + ... + 1716572.

It is an arithmetic number, because the mean of its divisors is an integer number (7438444).

Almost surely, 2^30898143 is an apocalyptic number.

30898143 is a deficient number, since it is larger than the sum of its proper divisors (13732521).

30898143 is a wasteful number, since it uses less digits than its factorization.

30898143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3433133 (or 3433130 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 30898143 is about 5558.6098082164. The cubic root of 30898143 is about 313.7936322340.

The spelling of 30898143 in words is "thirty million, eight hundred ninety-eight thousand, one hundred forty-three".