197245129 has 4 divisors (see below), whose sum is σ = 197341200. Its totient is φ = 197149060.

The previous prime is 197245117. The next prime is 197245133. The reversal of 197245129 is 921542791.

It is a happy number.

197245129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 921542791 = 13 ⋅70887907.

It is a cyclic number.

It is not a de Polignac number, because 197245129 - 2⁷ = 197245001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 197245091 and 197245100.

It is not an unprimeable number, because it can be changed into a prime (197245199) 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, 44887 + ... + 49084.

It is an arithmetic number, because the mean of its divisors is an integer number (49335300).

Almost surely, 2^197245129 is an apocalyptic number.

It is an amenable number.

197245129 is a deficient number, since it is larger than the sum of its proper divisors (96071).

197245129 is an equidigital number, since it uses as much as digits as its factorization.

197245129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96070.

The product of its digits is 45360, while the sum is 40.

The square root of 197245129 is about 14044.3984919255. The cubic root of 197245129 is about 582.1060267070.

The spelling of 197245129 in words is "one hundred ninety-seven million, two hundred forty-five thousand, one hundred twenty-nine".