2153156101 has 4 divisors (see below), whose sum is σ = 2188453804. Its totient is φ = 2117858400.

The previous prime is 2153156051. The next prime is 2153156129. The reversal of 2153156101 is 1016513512.

It is a happy number.

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 45887076 + 2107269025 = 6774^2 + 45905^2 .

It is a cyclic number.

It is not a de Polignac number, because 2153156101 - 2⁷ = 2153155973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153156141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17648760 + ... + 17648881.

It is an arithmetic number, because the mean of its divisors is an integer number (547113451).

Almost surely, 2^2153156101 is an apocalyptic number.

It is an amenable number.

2153156101 is a deficient number, since it is larger than the sum of its proper divisors (35297703).

2153156101 is an equidigital number, since it uses as much as digits as its factorization.

2153156101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35297702.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 2153156101 is about 46402.1131092109. The cubic root of 2153156101 is about 1291.2941164591.

Adding to 2153156101 its reverse (1016513512), we get a palindrome (3169669613).

The spelling of 2153156101 in words is "two billion, one hundred fifty-three million, one hundred fifty-six thousand, one hundred one".