198534315 has 32 divisors (see below), whose sum is σ = 364147200. Its totient is φ = 90480384.

The previous prime is 198534283. The next prime is 198534317. The reversal of 198534315 is 513435891.

It is not a de Polignac number, because 198534315 - 2⁵ = 198534283 is a prime.

It is a super-4 number, since 4×198534315⁴ (a number of 34 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (198534317) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33711 + ... + 39159.

It is an arithmetic number, because the mean of its divisors is an integer number (11379600).

Almost surely, 2^198534315 is an apocalyptic number.

198534315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

198534315 is a deficient number, since it is larger than the sum of its proper divisors (165612885).

198534315 is a wasteful number, since it uses less digits than its factorization.

198534315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5811.

The product of its digits is 64800, while the sum is 39.

The square root of 198534315 is about 14090.2205447608. The cubic root of 198534315 is about 583.3714806799.

The spelling of 198534315 in words is "one hundred ninety-eight million, five hundred thirty-four thousand, three hundred fifteen".