197240154 has 16 divisors (see below), whose sum is σ = 417685248. Its totient is φ = 61879232.

The previous prime is 197240149. The next prime is 197240167. The reversal of 197240154 is 451042791.

It is a happy number.

197240154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 966762 + ... + 966965.

It is an arithmetic number, because the mean of its divisors is an integer number (26105328).

Almost surely, 2^197240154 is an apocalyptic number.

197240154 is an abundant number, since it is smaller than the sum of its proper divisors (220445094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197240154 is a wasteful number, since it uses less digits than its factorization.

197240154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933749.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 197240154 is about 14044.2213739317. The cubic root of 197240154 is about 582.1011326244.

The spelling of 197240154 in words is "one hundred ninety-seven million, two hundred forty thousand, one hundred fifty-four".