197005814 has 4 divisors (see below), whose sum is σ = 295508724. Its totient is φ = 98502906.

The previous prime is 197005807. The next prime is 197005841. The reversal of 197005814 is 418500791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 418500791 = 18917 ⋅22123.

It is a super-2 number, since 2×197005814² = 77622581499605192, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 49251452 + ... + 49251455.

It is an arithmetic number, because the mean of its divisors is an integer number (73877181).

Almost surely, 2^197005814 is an apocalyptic number.

197005814 is a deficient number, since it is larger than the sum of its proper divisors (98502910).

197005814 is an equidigital number, since it uses as much as digits as its factorization.

197005814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98502909.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 197005814 is about 14035.8759612644. The cubic root of 197005814 is about 581.8705108251.

The spelling of 197005814 in words is "one hundred ninety-seven million, five thousand, eight hundred fourteen".