197164515 has 16 divisors (see below), whose sum is σ = 319908096. Its totient is φ = 103672800.

The previous prime is 197164507. The next prime is 197164523. The reversal of 197164515 is 515461791.

It is an interprime number because it is at equal distance from previous prime (197164507) and next prime (197164523).

It is not a de Polignac number, because 197164515 - 2³ = 197164507 is a prime.

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, 91501 + ... + 93630.

It is an arithmetic number, because the mean of its divisors is an integer number (19994256).

Almost surely, 2^197164515 is an apocalyptic number.

197164515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

197164515 is a deficient number, since it is larger than the sum of its proper divisors (122743581).

197164515 is a wasteful number, since it uses less digits than its factorization.

197164515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185210.

The product of its digits is 37800, while the sum is 39.

The square root of 197164515 is about 14041.5282287933. The cubic root of 197164515 is about 582.0267137394.

The spelling of 197164515 in words is "one hundred ninety-seven million, one hundred sixty-four thousand, five hundred fifteen".