2196154209 has 16 divisors (see below), whose sum is σ = 2971274112. Its totient is φ = 1442719488.

The previous prime is 2196154189. The next prime is 2196154211. The reversal of 2196154209 is 9024516912.

It is not a de Polignac number, because 2196154209 - 2⁹ = 2196153697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2196154229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39924 + ... + 77370.

It is an arithmetic number, because the mean of its divisors is an integer number (185704632).

Almost surely, 2^2196154209 is an apocalyptic number.

It is an amenable number.

2196154209 is a deficient number, since it is larger than the sum of its proper divisors (775119903).

2196154209 is a wasteful number, since it uses less digits than its factorization.

2196154209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37736.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 2196154209 is about 46863.1433964902. The cubic root of 2196154209 is about 1299.8331559054.

The spelling of 2196154209 in words is "two billion, one hundred ninety-six million, one hundred fifty-four thousand, two hundred nine".