2153442403 has 8 divisors (see below), whose sum is σ = 2494791008. Its totient is φ = 1820522304.

The previous prime is 2153442391. The next prime is 2153442407. The reversal of 2153442403 is 3042443512.

It is a happy number.

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 2153442403 - 2⁹ = 2153441891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2153442407) 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, 2106576 + ... + 2107597.

It is an arithmetic number, because the mean of its divisors is an integer number (311848876).

Almost surely, 2^2153442403 is an apocalyptic number.

2153442403 is a deficient number, since it is larger than the sum of its proper divisors (341348605).

2153442403 is an equidigital number, since it uses as much as digits as its factorization.

2153442403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4214253.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 2153442403 is about 46405.1980170325. The cubic root of 2153442403 is about 1291.3513477491.

Adding to 2153442403 its reverse (3042443512), we get a palindrome (5195885915).

The spelling of 2153442403 in words is "two billion, one hundred fifty-three million, four hundred forty-two thousand, four hundred three".