2153348609 has 4 divisors (see below), whose sum is σ = 2155667460. Its totient is φ = 2151029760.

The previous prime is 2153348581. The next prime is 2153348611. The reversal of 2153348609 is 9068433512.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 486423025 + 1666925584 = 22055^2 + 40828^2 .

It is a cyclic number.

It is not a de Polignac number, because 2153348609 - 2¹⁶ = 2153283073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2153348689) 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, 1158032 + ... + 1159889.

It is an arithmetic number, because the mean of its divisors is an integer number (538916865).

Almost surely, 2^2153348609 is an apocalyptic number.

It is an amenable number.

2153348609 is a deficient number, since it is larger than the sum of its proper divisors (2318851).

2153348609 is an equidigital number, since it uses as much as digits as its factorization.

2153348609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318850.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 2153348609 is about 46404.1874080346. The cubic root of 2153348609 is about 1291.3325990444.

The spelling of 2153348609 in words is "two billion, one hundred fifty-three million, three hundred forty-eight thousand, six hundred nine".