126738198 has 12 divisors (see below), whose sum is σ = 274599468. Its totient is φ = 42246060.

The previous prime is 126738193. The next prime is 126738203. The reversal of 126738198 is 891837621.

126738198 is a `hidden beast` number, since 1 + 267 + 381 + 9 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (126738193) and next prime (126738203).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126738193) 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 5 ways as a sum of consecutive naturals, for example, 3520488 + ... + 3520523.

It is an arithmetic number, because the mean of its divisors is an integer number (22883289).

Almost surely, 2^126738198 is an apocalyptic number.

126738198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

126738198 is an abundant number, since it is smaller than the sum of its proper divisors (147861270).

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

126738198 is a wasteful number, since it uses less digits than its factorization.

126738198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7041019 (or 7041016 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 126738198 is about 11257.8060917747. The cubic root of 126738198 is about 502.3069370464.

The spelling of 126738198 in words is "one hundred twenty-six million, seven hundred thirty-eight thousand, one hundred ninety-eight".