2105154285 has 32 divisors (see below), whose sum is σ = 3840721920. Its totient is φ = 975418368.

The previous prime is 2105154277. The next prime is 2105154313. The reversal of 2105154285 is 5824515012.

It is not a de Polignac number, because 2105154285 - 2³ = 2105154277 is a prime.

It is a super-2 number, since 2×2105154285² = 8863349127307722450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 314205 + ... + 320834.

It is an arithmetic number, because the mean of its divisors is an integer number (120022560).

Almost surely, 2^2105154285 is an apocalyptic number.

It is an amenable number.

2105154285 is a deficient number, since it is larger than the sum of its proper divisors (1735567635).

2105154285 is a wasteful number, since it uses less digits than its factorization.

2105154285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635077.

The product of its (nonzero) digits is 16000, while the sum is 33.

The square root of 2105154285 is about 45881.9603439086. The cubic root of 2105154285 is about 1281.6260026416.

Adding to 2105154285 its reverse (5824515012), we get a palindrome (7929669297).

The spelling of 2105154285 in words is "two billion, one hundred five million, one hundred fifty-four thousand, two hundred eighty-five".