197530631 has 8 divisors (see below), whose sum is σ = 208483200. Its totient is φ = 186633720.

The previous prime is 197530607. The next prime is 197530651. The reversal of 197530631 is 136035791.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-197530631 is a prime.

It is a super-2 number, since 2×197530631² = 78036700366516322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 197530591 and 197530600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197530651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6515 + ... + 20916.

It is an arithmetic number, because the mean of its divisors is an integer number (26060400).

Almost surely, 2^197530631 is an apocalyptic number.

197530631 is a deficient number, since it is larger than the sum of its proper divisors (10952569).

197530631 is a wasteful number, since it uses less digits than its factorization.

197530631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27829.

The product of its (nonzero) digits is 17010, while the sum is 35.

The square root of 197530631 is about 14054.5590823761. The cubic root of 197530631 is about 582.3867473094.

The spelling of 197530631 in words is "one hundred ninety-seven million, five hundred thirty thousand, six hundred thirty-one".