126198 has 40 divisors (see below), whose sum is σ = 304920. Its totient is φ = 38880.

The previous prime is 126173. The next prime is 126199. The reversal of 126198 is 891621.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126199) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3058 + ... + 3098.

It is an arithmetic number, because the mean of its divisors is an integer number (7623).

2¹²⁶¹⁹⁸ is an apocalyptic number.

126198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 126198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152460).

126198 is an abundant number, since it is smaller than the sum of its proper divisors (178722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126198 is a wasteful number, since it uses less digits than its factorization.

126198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74 (or 65 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 126198 is about 355.2435784078. The cubic root of 126198 is about 50.1592257384.

It can be divided in two parts, 126 and 198, that added together give a square (324 = 18²).

The spelling of 126198 in words is "one hundred twenty-six thousand, one hundred ninety-eight".