197954 has 8 divisors (see below), whose sum is σ = 307260. Its totient is φ = 95536.

The previous prime is 197947. The next prime is 197957. The reversal of 197954 is 459791.

It can be written as a sum of positive squares in 2 ways, for example, as 182329 + 15625 = 427^2 + 125^2 .

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

It is a super-2 number, since 2×197954² = 78371572232, which contains 22 as substring.

It is an Ulam number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 197954.

It is not an unprimeable number, because it can be changed into a prime (197957) 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, 1649 + ... + 1764.

2¹⁹⁷⁹⁵⁴ is an apocalyptic number.

197954 is a deficient number, since it is larger than the sum of its proper divisors (109306).

197954 is a wasteful number, since it uses less digits than its factorization.

197954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3444.

The product of its digits is 11340, while the sum is 35.

The square root of 197954 is about 444.9202175671. The cubic root of 197954 is about 58.2802528478.

The spelling of 197954 in words is "one hundred ninety-seven thousand, nine hundred fifty-four".