197412156 has 18 divisors (see below), whose sum is σ = 499014152. Its totient is φ = 65804040.

The previous prime is 197412107. The next prime is 197412157. The reversal of 197412156 is 651214791.

197412156 is a `hidden beast` number, since 1 + 97 + 412 + 156 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 5483671 = 197412156 / (1 + 9 + 7 + 4 + 1 + 2 + 1 + 5 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 197412156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197412157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2741800 + ... + 2741871.

Almost surely, 2^197412156 is an apocalyptic number.

It is an amenable number.

197412156 is an abundant number, since it is smaller than the sum of its proper divisors (301601996).

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

197412156 is a wasteful number, since it uses less digits than its factorization.

197412156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5483681 (or 5483676 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 197412156 is about 14050.3436256912. The cubic root of 197412156 is about 582.2702893053.

The spelling of 197412156 in words is "one hundred ninety-seven million, four hundred twelve thousand, one hundred fifty-six".