198080451 has 32 divisors (see below), whose sum is σ = 301320000. Its totient is φ = 128553984.

The previous prime is 198080429. The next prime is 198080459. The reversal of 198080451 is 154080891.

It is not a de Polignac number, because 198080451 - 2⁶ = 198080387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (198080459) 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, 212755 + ... + 213683.

It is an arithmetic number, because the mean of its divisors is an integer number (9416250).

Almost surely, 2^198080451 is an apocalyptic number.

198080451 is a deficient number, since it is larger than the sum of its proper divisors (103239549).

198080451 is a wasteful number, since it uses less digits than its factorization.

198080451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140 (or 1134 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 198080451 is about 14074.1056909489. The cubic root of 198080451 is about 582.9265981709.

The spelling of 198080451 in words is "one hundred ninety-eight million, eighty thousand, four hundred fifty-one".