2091531135 has 32 divisors (see below), whose sum is σ = 3405169152. Its totient is φ = 1096018560.

The previous prime is 2091531133. The next prime is 2091531139. The reversal of 2091531135 is 5311351902.

It is not a de Polignac number, because 2091531135 - 2¹ = 2091531133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2091531133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 323757 + ... + 330153.

It is an arithmetic number, because the mean of its divisors is an integer number (106411536).

Almost surely, 2^2091531135 is an apocalyptic number.

2091531135 is a deficient number, since it is larger than the sum of its proper divisors (1313638017).

2091531135 is a wasteful number, since it uses less digits than its factorization.

2091531135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6783.

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 2091531135 is about 45733.2607081542. The cubic root of 2091531135 is about 1278.8554088864.

The spelling of 2091531135 in words is "two billion, ninety-one million, five hundred thirty-one thousand, one hundred thirty-five".