197474042 has 4 divisors (see below), whose sum is σ = 296211066. Its totient is φ = 98737020.

The previous prime is 197474041. The next prime is 197474047. The reversal of 197474042 is 240474791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240474791 = 43 ⋅5592437.

It can be written as a sum of positive squares in only one way, i.e., 173159281 + 24314761 = 13159^2 + 4931^2 .

It is a junction number, because it is equal to n+sod(n) for n = 197473987 and 197474005.

It is not an unprimeable number, because it can be changed into a prime (197474041) by changing a digit.

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, 49368509 + ... + 49368512.

Almost surely, 2^197474042 is an apocalyptic number.

197474042 is a deficient number, since it is larger than the sum of its proper divisors (98737024).

197474042 is an equidigital number, since it uses as much as digits as its factorization.

197474042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98737023.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 197474042 is about 14052.5457480131. The cubic root of 197474042 is about 582.3311275284.

The spelling of 197474042 in words is "one hundred ninety-seven million, four hundred seventy-four thousand, forty-two".