126607198 has 4 divisors (see below), whose sum is σ = 189910800. Its totient is φ = 63303598.

The previous prime is 126607123. The next prime is 126607199. The reversal of 126607198 is 891706621.

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

It is a super-2 number, since 2×126607198² = 32058765170822408, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 126607198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126607199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31651798 + ... + 31651801.

It is an arithmetic number, because the mean of its divisors is an integer number (47477700).

Almost surely, 2^126607198 is an apocalyptic number.

126607198 is a deficient number, since it is larger than the sum of its proper divisors (63303602).

126607198 is an equidigital number, since it uses as much as digits as its factorization.

126607198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63303601.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 126607198 is about 11251.9864024091. The cubic root of 126607198 is about 502.1338114103.

The spelling of 126607198 in words is "one hundred twenty-six million, six hundred seven thousand, one hundred ninety-eight".