198126701 has 4 divisors (see below), whose sum is σ = 198231132. Its totient is φ = 198022272.

The previous prime is 198126631. The next prime is 198126713. The reversal of 198126701 is 107621891.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 145781476 + 52345225 = 12074^2 + 7235^2 .

It is a cyclic number.

It is not a de Polignac number, because 198126701 - 2²² = 193932397 is a prime.

It is a super-3 number, since 3×198126701³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198126781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49316 + ... + 53181.

It is an arithmetic number, because the mean of its divisors is an integer number (49557783).

Almost surely, 2^198126701 is an apocalyptic number.

It is an amenable number.

198126701 is a deficient number, since it is larger than the sum of its proper divisors (104431).

198126701 is a wasteful number, since it uses less digits than its factorization.

198126701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104430.

The product of its (nonzero) digits is 6048, while the sum is 35.

The square root of 198126701 is about 14075.7486834626. The cubic root of 198126701 is about 582.9719640091.

It can be divided in two parts, 1981 and 26701, that added together give a palindrome (28682).

The spelling of 198126701 in words is "one hundred ninety-eight million, one hundred twenty-six thousand, seven hundred one".