2154105135 has 96 divisors (see below), whose sum is σ = 4795435008. Its totient is φ = 869425920.

The previous prime is 2154105127. The next prime is 2154105169. The reversal of 2154105135 is 5315014512.

2154105135 is a `hidden beast` number, since 215 + 410 + 5 + 1 + 35 = 666.

It is not a de Polignac number, because 2154105135 - 2³ = 2154105127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2154105099 and 2154105108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 82750 + ... + 105620.

It is an arithmetic number, because the mean of its divisors is an integer number (49952448).

Almost surely, 2^2154105135 is an apocalyptic number.

2154105135 is an abundant number, since it is smaller than the sum of its proper divisors (2641329873).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2154105135 is a wasteful number, since it uses less digits than its factorization.

2154105135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22925 (or 22922 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 2154105135 is about 46412.3381763944. The cubic root of 2154105135 is about 1291.4838073064.

Adding to 2154105135 its reverse (5315014512), we get a palindrome (7469119647).

The spelling of 2154105135 in words is "two billion, one hundred fifty-four million, one hundred five thousand, one hundred thirty-five".