2153611042 has 16 divisors (see below), whose sum is σ = 3557030112. Its totient is φ = 969764320.

The previous prime is 2153611037. The next prime is 2153611073. The reversal of 2153611042 is 2401163512.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2153610998 and 2153611016.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 455083 + ... + 459790.

It is an arithmetic number, because the mean of its divisors is an integer number (222314382).

Almost surely, 2^2153611042 is an apocalyptic number.

2153611042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2153611042 is a deficient number, since it is larger than the sum of its proper divisors (1403419070).

2153611042 is a wasteful number, since it uses less digits than its factorization.

2153611042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914993.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2153611042 is about 46407.0150085092. The cubic root of 2153611042 is about 1291.3850560286.

Adding to 2153611042 its reverse (2401163512), we get a palindrome (4554774554).

The spelling of 2153611042 in words is "two billion, one hundred fifty-three million, six hundred eleven thousand, forty-two".