197801012 has 12 divisors (see below), whose sum is σ = 361202016. Its totient is φ = 94600440.

The previous prime is 197800997. The next prime is 197801017. The reversal of 197801012 is 210108791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197801017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1074914 + ... + 1075097.

It is an arithmetic number, because the mean of its divisors is an integer number (30100168).

Almost surely, 2^197801012 is an apocalyptic number.

It is an amenable number.

197801012 is a deficient number, since it is larger than the sum of its proper divisors (163401004).

197801012 is a wasteful number, since it uses less digits than its factorization.

197801012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2150038 (or 2150036 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 197801012 is about 14064.1747713828. The cubic root of 197801012 is about 582.6523508734.

The spelling of 197801012 in words is "one hundred ninety-seven million, eight hundred one thousand, twelve".