2153245539 has 4 divisors (see below), whose sum is σ = 2870994056. Its totient is φ = 1435497024.

The previous prime is 2153245537. The next prime is 2153245543. The reversal of 2153245539 is 9355423512.

2153245539 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2153245539 - 2¹ = 2153245537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2153245497 and 2153245506.

It is not an unprimeable number, because it can be changed into a prime (2153245537) 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, 358874254 + ... + 358874259.

It is an arithmetic number, because the mean of its divisors is an integer number (717748514).

Almost surely, 2^2153245539 is an apocalyptic number.

2153245539 is a deficient number, since it is larger than the sum of its proper divisors (717748517).

2153245539 is an equidigital number, since it uses as much as digits as its factorization.

2153245539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717748516.

The product of its digits is 162000, while the sum is 39.

The square root of 2153245539 is about 46403.0768268657. The cubic root of 2153245539 is about 1291.3119955103.

The spelling of 2153245539 in words is "two billion, one hundred fifty-three million, two hundred forty-five thousand, five hundred thirty-nine".