2197453129 has 3 divisors (see below), whose sum is σ = 2197500007. Its totient is φ = 2197406252.

The previous prime is 2197453109. The next prime is 2197453157. The reversal of 2197453129 is 9213547912.

The square root of 2197453129 is 46877.

It is a perfect power (a square), and thus also a powerful number.

2197453129 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 brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 67815225 + 2129637904 = 8235^2 + 46148^2 .

It is not a de Polignac number, because 2197453129 - 2¹⁹ = 2196928841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2197453109) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 23439 + ... + 70315.

Almost surely, 2^2197453129 is an apocalyptic number.

2197453129 is the 46877-th square number.

2197453129 is the 23439-th centered octagonal number.

It is an amenable number.

2197453129 is a deficient number, since it is larger than the sum of its proper divisors (46878).

2197453129 is an frugal number, since it uses more digits than its factorization.

2197453129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93754 (or 46877 counting only the distinct ones).

The product of its digits is 136080, while the sum is 43.

The cubic root of 2197453129 is about 1300.0893684124.

The spelling of 2197453129 in words is "two billion, one hundred ninety-seven million, four hundred fifty-three thousand, one hundred twenty-nine".