197743151 has 8 divisors (see below), whose sum is σ = 201833808. Its totient is φ = 193680000.

The previous prime is 197743087. The next prime is 197743157. The reversal of 197743151 is 151347791.

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

It is a cyclic number.

It is not a de Polignac number, because 197743151 - 2⁶ = 197743087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197743157) 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, 7976 + ... + 21426.

It is an arithmetic number, because the mean of its divisors is an integer number (25229226).

Almost surely, 2^197743151 is an apocalyptic number.

197743151 is a deficient number, since it is larger than the sum of its proper divisors (4090657).

197743151 is a wasteful number, since it uses less digits than its factorization.

197743151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13753.

The product of its digits is 26460, while the sum is 38.

The square root of 197743151 is about 14062.1175859114. The cubic root of 197743151 is about 582.5955326008.

The spelling of 197743151 in words is "one hundred ninety-seven million, seven hundred forty-three thousand, one hundred fifty-one".