30198513 has 16 divisors (see below), whose sum is σ = 41538816. Its totient is φ = 19503120.

The previous prime is 30198481. The next prime is 30198523. The reversal of 30198513 is 31589103.

It is a happy number.

It is not a de Polignac number, because 30198513 - 2⁵ = 30198481 is a prime.

It is a super-2 number, since 2×30198513² = 1823900374822338, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30198523) 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, 16006 + ... + 17792.

It is an arithmetic number, because the mean of its divisors is an integer number (2596176).

Almost surely, 2^30198513 is an apocalyptic number.

It is an amenable number.

30198513 is a deficient number, since it is larger than the sum of its proper divisors (11340303).

30198513 is a wasteful number, since it uses less digits than its factorization.

30198513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1964.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 30198513 is about 5495.3173702708. The cubic root of 30198513 is about 311.4071066985.

The spelling of 30198513 in words is "thirty million, one hundred ninety-eight thousand, five hundred thirteen".