197636145 has 32 divisors (see below), whose sum is σ = 362880000. Its totient is φ = 89976000.

The previous prime is 197636123. The next prime is 197636161. The reversal of 197636145 is 541636791.

197636145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 197636145 - 2¹⁰ = 197635121 is a prime.

It is a super-2 number, since 2×197636145² = 78120091620922050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 197636097 and 197636106.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22606 + ... + 30104.

It is an arithmetic number, because the mean of its divisors is an integer number (11340000).

Almost surely, 2^197636145 is an apocalyptic number.

197636145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

197636145 is a deficient number, since it is larger than the sum of its proper divisors (165243855).

197636145 is a wasteful number, since it uses less digits than its factorization.

197636145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7765.

The product of its digits is 136080, while the sum is 42.

The square root of 197636145 is about 14058.3123098045. The cubic root of 197636145 is about 582.4904257730.

The spelling of 197636145 in words is "one hundred ninety-seven million, six hundred thirty-six thousand, one hundred forty-five".