197135785 has 32 divisors (see below), whose sum is σ = 296976384. Its totient is φ = 122040000.

The previous prime is 197135767. The next prime is 197135863. The reversal of 197135785 is 587531791.

It is not a de Polignac number, because 197135785 - 2¹¹ = 197133737 is a prime.

It is a Duffinian number.

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, 56440 + ... + 59830.

It is an arithmetic number, because the mean of its divisors is an integer number (9280512).

Almost surely, 2^197135785 is an apocalyptic number.

It is an amenable number.

197135785 is a deficient number, since it is larger than the sum of its proper divisors (99840599).

197135785 is a wasteful number, since it uses less digits than its factorization.

197135785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3565.

The product of its digits is 264600, while the sum is 46.

The square root of 197135785 is about 14040.5051547300. The cubic root of 197135785 is about 581.9984421887.

The spelling of 197135785 in words is "one hundred ninety-seven million, one hundred thirty-five thousand, seven hundred eighty-five".