198148726 has 8 divisors (see below), whose sum is σ = 310145904. Its totient is φ = 94766760.

The previous prime is 198148723. The next prime is 198148733. The reversal of 198148726 is 627841891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×198148726³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46), and also a Moran number because the ratio is a prime number: 4307581 = 198148726 / (1 + 9 + 8 + 1 + 4 + 8 + 7 + 2 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198148723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2153745 + ... + 2153836.

It is an arithmetic number, because the mean of its divisors is an integer number (38768238).

Almost surely, 2^198148726 is an apocalyptic number.

198148726 is a deficient number, since it is larger than the sum of its proper divisors (111997178).

198148726 is a wasteful number, since it uses less digits than its factorization.

198148726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4307606.

The product of its digits is 193536, while the sum is 46.

The square root of 198148726 is about 14076.5310357346. The cubic root of 198148726 is about 582.9935654754.

The spelling of 198148726 in words is "one hundred ninety-eight million, one hundred forty-eight thousand, seven hundred twenty-six".