197852631 has 4 divisors (see below), whose sum is σ = 263803512. Its totient is φ = 131901752.

The previous prime is 197852623. The next prime is 197852663. The reversal of 197852631 is 136258791.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 197852631 - 2³ = 197852623 is a prime.

It is a super-2 number, since 2×197852631² = 78291327187244322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197852231) 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, 32975436 + ... + 32975441.

It is an arithmetic number, because the mean of its divisors is an integer number (65950878).

Almost surely, 2^197852631 is an apocalyptic number.

197852631 is a deficient number, since it is larger than the sum of its proper divisors (65950881).

197852631 is an equidigital number, since it uses as much as digits as its factorization.

197852631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65950880.

The product of its digits is 90720, while the sum is 42.

The square root of 197852631 is about 14066.0097753414. The cubic root of 197852631 is about 582.7030302835.

The spelling of 197852631 in words is "one hundred ninety-seven million, eight hundred fifty-two thousand, six hundred thirty-one".