197530 has 8 divisors (see below), whose sum is σ = 355572. Its totient is φ = 79008.

The previous prime is 197521. The next prime is 197539. The reversal of 197530 is 35791.

197530 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (197521) and next prime (197539).

It can be written as a sum of positive squares in 2 ways, for example, as 190969 + 6561 = 437^2 + 81^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 197495 and 197504.

It is not an unprimeable number, because it can be changed into a prime (197539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9867 + ... + 9886.

2¹⁹⁷⁵³⁰ is an apocalyptic number.

197530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197530 is a deficient number, since it is larger than the sum of its proper divisors (158042).

197530 is a wasteful number, since it uses less digits than its factorization.

197530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19760.

The product of its (nonzero) digits is 945, while the sum is 25.

The square root of 197530 is about 444.4434722212. The cubic root of 197530 is about 58.2386127175.

It can be divided in two parts, 197 and 530, that added together give a palindrome (727).

The spelling of 197530 in words is "one hundred ninety-seven thousand, five hundred thirty".