197120810 has 16 divisors (see below), whose sum is σ = 370244736. Its totient is φ = 75420048.

The previous prime is 197120713. The next prime is 197120837. The reversal of 197120810 is 18021791.

It is a super-2 number, since 2×197120810² = 77713227470112200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428294 + ... + 428753.

It is an arithmetic number, because the mean of its divisors is an integer number (23140296).

Almost surely, 2^197120810 is an apocalyptic number.

197120810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197120810 is a deficient number, since it is larger than the sum of its proper divisors (173123926).

197120810 is a wasteful number, since it uses less digits than its factorization.

197120810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857077.

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 197120810 is about 14039.9718660687. The cubic root of 197120810 is about 581.9837050582.

The spelling of 197120810 in words is "one hundred ninety-seven million, one hundred twenty thousand, eight hundred ten".