197153 has 4 divisors (see below), whose sum is σ = 215088. Its totient is φ = 179220.

The previous prime is 197147. The next prime is 197159. The reversal of 197153 is 351791.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 351791 = 11 ⋅31981.

It is an interprime number because it is at equal distance from previous prime (197147) and next prime (197159).

It is a cyclic number.

It is not a de Polignac number, because 197153 - 2⁴ = 197137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8951 + ... + 8972.

It is an arithmetic number, because the mean of its divisors is an integer number (53772).

2¹⁹⁷¹⁵³ is an apocalyptic number.

It is an amenable number.

197153 is a deficient number, since it is larger than the sum of its proper divisors (17935).

197153 is a wasteful number, since it uses less digits than its factorization.

197153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17934.

The product of its digits is 945, while the sum is 26.

The square root of 197153 is about 444.0191437314. The cubic root of 197153 is about 58.2015382816.

The spelling of 197153 in words is "one hundred ninety-seven thousand, one hundred fifty-three".