197538012 has 108 divisors (see below), whose sum is σ = 586587456. Its totient is φ = 55883520.

The previous prime is 197537993. The next prime is 197538013. The reversal of 197538012 is 210835791.

197538012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197538013) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 198837 + ... + 199827.

Almost surely, 2^197538012 is an apocalyptic number.

197538012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197538012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293293728).

197538012 is an abundant number, since it is smaller than the sum of its proper divisors (389049444).

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

197538012 is a wasteful number, since it uses less digits than its factorization.

197538012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128 (or 1116 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 197538012 is about 14054.8216637565. The cubic root of 197538012 is about 582.3940011093.

The spelling of 197538012 in words is "one hundred ninety-seven million, five hundred thirty-eight thousand, twelve".