198954513 has 24 divisors (see below), whose sum is σ = 296548200. Its totient is φ = 128438784.

The previous prime is 198954499. The next prime is 198954521. The reversal of 198954513 is 315459891.

198954513 is a `hidden beast` number, since 1 + 9 + 89 + 54 + 513 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 116380944 + 82573569 = 10788^2 + 9087^2 .

It is not a de Polignac number, because 198954513 - 2⁶ = 198954449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (198954523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74953 + ... + 77561.

It is an arithmetic number, because the mean of its divisors is an integer number (12356175).

Almost surely, 2^198954513 is an apocalyptic number.

It is an amenable number.

198954513 is a deficient number, since it is larger than the sum of its proper divisors (97593687).

198954513 is a wasteful number, since it uses less digits than its factorization.

198954513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2881 (or 2878 counting only the distinct ones).

The product of its digits is 194400, while the sum is 45.

The square root of 198954513 is about 14105.1236435559. The cubic root of 198954513 is about 583.7827593584.

The spelling of 198954513 in words is "one hundred ninety-eight million, nine hundred fifty-four thousand, five hundred thirteen".