2154534239 has 16 divisors (see below), whose sum is σ = 2533491744. Its totient is φ = 1806364800.

The previous prime is 2154534227. The next prime is 2154534247. The reversal of 2154534239 is 9324354512.

It is a happy number.

2154534239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2154534239 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 (2154534259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167249 + ... + 179669.

It is an arithmetic number, because the mean of its divisors is an integer number (158343234).

Almost surely, 2^2154534239 is an apocalyptic number.

2154534239 is a deficient number, since it is larger than the sum of its proper divisors (378957505).

2154534239 is a wasteful number, since it uses less digits than its factorization.

2154534239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13658.

The product of its digits is 129600, while the sum is 38.

The square root of 2154534239 is about 46416.9606824919. The cubic root of 2154534239 is about 1291.5695573880.

The spelling of 2154534239 in words is "two billion, one hundred fifty-four million, five hundred thirty-four thousand, two hundred thirty-nine".