197029145 has 16 divisors (see below), whose sum is σ = 249238080. Its totient is φ = 149112000.

The previous prime is 197029141. The next prime is 197029159. The reversal of 197029145 is 541920791.

It is not a de Polignac number, because 197029145 - 2² = 197029141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 197029099 and 197029108.

It is not an unprimeable number, because it can be changed into a prime (197029141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102695 + ... + 104595.

It is an arithmetic number, because the mean of its divisors is an integer number (15577380).

Almost surely, 2^197029145 is an apocalyptic number.

It is an amenable number.

197029145 is a deficient number, since it is larger than the sum of its proper divisors (52208935).

197029145 is a wasteful number, since it uses less digits than its factorization.

197029145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3016.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 197029145 is about 14036.7070568563. The cubic root of 197029145 is about 581.8934798343.

The spelling of 197029145 in words is "one hundred ninety-seven million, twenty-nine thousand, one hundred forty-five".