197983126 has 32 divisors (see below), whose sum is σ = 339158016. Its totient is φ = 85800000.

The previous prime is 197983117. The next prime is 197983127. The reversal of 197983126 is 621389791.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197983127) 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, 263251 + ... + 264001.

It is an arithmetic number, because the mean of its divisors is an integer number (10598688).

Almost surely, 2^197983126 is an apocalyptic number.

197983126 is a deficient number, since it is larger than the sum of its proper divisors (141174890).

197983126 is a wasteful number, since it uses less digits than its factorization.

197983126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308.

The product of its digits is 163296, while the sum is 46.

The square root of 197983126 is about 14070.6476752138. The cubic root of 197983126 is about 582.8311106636.

The spelling of 197983126 in words is "one hundred ninety-seven million, nine hundred eighty-three thousand, one hundred twenty-six".