126198447 has 16 divisors (see below), whose sum is σ = 178464768. Its totient is φ = 79152480.

The previous prime is 126198439. The next prime is 126198461. The reversal of 126198447 is 744891621.

It is not a de Polignac number, because 126198447 - 2³ = 126198439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 126198399 and 126198408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126198407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10783 + ... + 19200.

It is an arithmetic number, because the mean of its divisors is an integer number (11154048).

Almost surely, 2^126198447 is an apocalyptic number.

126198447 is a deficient number, since it is larger than the sum of its proper divisors (52266321).

126198447 is a wasteful number, since it uses less digits than its factorization.

126198447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30070.

The product of its digits is 96768, while the sum is 42.

The square root of 126198447 is about 11233.8082144925. The cubic root of 126198447 is about 501.5928496052.

The spelling of 126198447 in words is "one hundred twenty-six million, one hundred ninety-eight thousand, four hundred forty-seven".