2153081603 has 8 divisors (see below), whose sum is σ = 2311843680. Its totient is φ = 1997887360.

The previous prime is 2153081561. The next prime is 2153081617. The reversal of 2153081603 is 3061803512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2153081603 - 2¹⁴ = 2153065219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2153081303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 890708 + ... + 893121.

It is an arithmetic number, because the mean of its divisors is an integer number (288980460).

Almost surely, 2^2153081603 is an apocalyptic number.

2153081603 is a deficient number, since it is larger than the sum of its proper divisors (158762077).

2153081603 is a wasteful number, since it uses less digits than its factorization.

2153081603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783917.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 2153081603 is about 46401.3103586526. The cubic root of 2153081603 is about 1291.2792236020.

The spelling of 2153081603 in words is "two billion, one hundred fifty-three million, eighty-one thousand, six hundred three".