2154004523 has 8 divisors (see below), whose sum is σ = 2351507760. Its totient is φ = 1956782080.

The previous prime is 2154004471. The next prime is 2154004561. The reversal of 2154004523 is 3254004512.

It is a happy number.

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

It is not a de Polignac number, because 2154004523 - 2¹⁰ = 2154003499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2154004492 and 2154004501.

It is not an unprimeable number, because it can be changed into a prime (2154009523) 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, 53990 + ... + 84987.

It is an arithmetic number, because the mean of its divisors is an integer number (293938470).

Almost surely, 2^2154004523 is an apocalyptic number.

2154004523 is a deficient number, since it is larger than the sum of its proper divisors (197503237).

2154004523 is a wasteful number, since it uses less digits than its factorization.

2154004523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140397.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2154004523 is about 46411.2542709201. The cubic root of 2154004523 is about 1291.4636998397.

The spelling of 2154004523 in words is "two billion, one hundred fifty-four million, four thousand, five hundred twenty-three".