197008165 has 16 divisors (see below), whose sum is σ = 251178480. Its totient is φ = 148055040.

The previous prime is 197008151. The next prime is 197008171. The reversal of 197008165 is 561800791.

It can be written as a sum of positive squares in 8 ways, for example, as 9400356 + 187607809 = 3066^2 + 13697^2 .

It is not a de Polignac number, because 197008165 - 2⁷ = 197008037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent 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, 12996 + ... + 23725.

It is an arithmetic number, because the mean of its divisors is an integer number (15698655).

Almost surely, 2^197008165 is an apocalyptic number.

It is an amenable number.

197008165 is a deficient number, since it is larger than the sum of its proper divisors (54170315).

197008165 is a wasteful number, since it uses less digits than its factorization.

197008165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36792.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 197008165 is about 14035.9597106860. The cubic root of 197008165 is about 581.8728254305.

The spelling of 197008165 in words is "one hundred ninety-seven million, eight thousand, one hundred sixty-five".