2104021154 has 8 divisors (see below), whose sum is σ = 3163749420. Its totient is φ = 1049438016.

The previous prime is 2104021151. The next prime is 2104021207. The reversal of 2104021154 is 4511204012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2048920225 + 55100929 = 45265^2 + 7423^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2104021151) 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, 1285259 + ... + 1286894.

Almost surely, 2^2104021154 is an apocalyptic number.

2104021154 is a deficient number, since it is larger than the sum of its proper divisors (1059728266).

2104021154 is a wasteful number, since it uses less digits than its factorization.

2104021154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2572564.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2104021154 is about 45869.6103536971. The cubic root of 2104021154 is about 1281.3960098714.

Adding to 2104021154 its reverse (4511204012), we get a palindrome (6615225166).

The spelling of 2104021154 in words is "two billion, one hundred four million, twenty-one thousand, one hundred fifty-four".