197145072 has 60 divisors (see below), whose sum is σ = 563490720. Its totient is φ = 64314624.

The previous prime is 197145071. The next prime is 197145101. The reversal of 197145072 is 270541791.

It is a happy number.

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 (197145071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7797 + ... + 21332.

It is an arithmetic number, because the mean of its divisors is an integer number (9391512).

Almost surely, 2^197145072 is an apocalyptic number.

197145072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

197145072 is an abundant number, since it is smaller than the sum of its proper divisors (366345648).

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

197145072 is a wasteful number, since it uses less digits than its factorization.

197145072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29190 (or 29181 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 197145072 is about 14040.8358725540. The cubic root of 197145072 is about 582.0075812949.

The spelling of 197145072 in words is "one hundred ninety-seven million, one hundred forty-five thousand, seventy-two".