197123755 has 16 divisors (see below), whose sum is σ = 253489824. Its totient is φ = 146629120.

The previous prime is 197123747. The next prime is 197123813. The reversal of 197123755 is 557321791.

It is not a de Polignac number, because 197123755 - 2³ = 197123747 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6916 + ... + 21025.

It is an arithmetic number, because the mean of its divisors is an integer number (15843114).

Almost surely, 2^197123755 is an apocalyptic number.

197123755 is a deficient number, since it is larger than the sum of its proper divisors (56366069).

197123755 is a wasteful number, since it uses less digits than its factorization.

197123755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28046.

The product of its digits is 66150, while the sum is 40.

The square root of 197123755 is about 14040.0767448045. The cubic root of 197123755 is about 581.9866033375.

The spelling of 197123755 in words is "one hundred ninety-seven million, one hundred twenty-three thousand, seven hundred fifty-five".