2153499121 has 8 divisors (see below), whose sum is σ = 2276252000. Its totient is φ = 2031687360.

The previous prime is 2153499119. The next prime is 2153499149. The reversal of 2153499121 is 1219943512.

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 2153499121 - 2¹ = 2153499119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2153494121) 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, 230571 + ... + 239728.

It is an arithmetic number, because the mean of its divisors is an integer number (284531500).

Almost surely, 2^2153499121 is an apocalyptic number.

It is an amenable number.

2153499121 is a deficient number, since it is larger than the sum of its proper divisors (122752879).

2153499121 is a wasteful number, since it uses less digits than its factorization.

2153499121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470559.

The product of its digits is 19440, while the sum is 37.

The square root of 2153499121 is about 46405.8091298923. The cubic root of 2153499121 is about 1291.3626849802.

The spelling of 2153499121 in words is "two billion, one hundred fifty-three million, four hundred ninety-nine thousand, one hundred twenty-one".