197156029 has 4 divisors (see below), whose sum is σ = 225321184. Its totient is φ = 168990876.

The previous prime is 197155999. The next prime is 197156041. The reversal of 197156029 is 920651791.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 197156029 - 2⁵ = 197155997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 197155982 and 197156000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197156059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14082567 + ... + 14082580.

It is an arithmetic number, because the mean of its divisors is an integer number (56330296).

Almost surely, 2^197156029 is an apocalyptic number.

It is an amenable number.

197156029 is a deficient number, since it is larger than the sum of its proper divisors (28165155).

197156029 is an equidigital number, since it uses as much as digits as its factorization.

197156029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28165154.

The product of its (nonzero) digits is 34020, while the sum is 40.

The square root of 197156029 is about 14041.2260504559. The cubic root of 197156029 is about 582.0183634377.

The spelling of 197156029 in words is "one hundred ninety-seven million, one hundred fifty-six thousand, twenty-nine".