2105531135 has 16 divisors (see below), whose sum is σ = 2559483360. Its totient is φ = 1662566400.

The previous prime is 2105531059. The next prime is 2105531137. The reversal of 2105531135 is 5311355012.

It is a happy number.

It is not a de Polignac number, because 2105531135 - 2¹⁴ = 2105514751 is a prime.

It is a super-2 number, since 2×2105531135² = 8866522720908776450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105531137) 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, 662831 + ... + 665999.

It is an arithmetic number, because the mean of its divisors is an integer number (159967710).

Almost surely, 2^2105531135 is an apocalyptic number.

2105531135 is a deficient number, since it is larger than the sum of its proper divisors (453952225).

2105531135 is a wasteful number, since it uses less digits than its factorization.

2105531135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4858.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 2105531135 is about 45886.0668939930. The cubic root of 2105531135 is about 1281.7024739872.

Adding to 2105531135 its reverse (5311355012), we get a palindrome (7416886147).

The spelling of 2105531135 in words is "two billion, one hundred five million, five hundred thirty-one thousand, one hundred thirty-five".