2091535 has 8 divisors (see below), whose sum is σ = 2517696. Its totient is φ = 1668000.

The previous prime is 2091521. The next prime is 2091553. The reversal of 2091535 is 5351902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2091535 - 2⁵ = 2091503 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2410 + ... + 3160.

It is an arithmetic number, because the mean of its divisors is an integer number (314712).

2^2091535 is an apocalyptic number.

2091535 is a deficient number, since it is larger than the sum of its proper divisors (426161).

2091535 is an equidigital number, since it uses as much as digits as its factorization.

2091535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 2091535 is about 1446.2140228887. The cubic root of 2091535 is about 127.8856196630.

The spelling of 2091535 in words is "two million, ninety-one thousand, five hundred thirty-five".