2092581 has 32 divisors (see below), whose sum is σ = 3386880. Its totient is φ = 1271808.

The previous prime is 2092561. The next prime is 2092589. The reversal of 2092581 is 1852902.

It is not a de Polignac number, because 2092581 - 2⁵ = 2092549 is a prime.

It is a super-2 number, since 2×2092581² = 8757790483122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

2092581 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2092589) 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, 21525 + ... + 21621.

It is an arithmetic number, because the mean of its divisors is an integer number (105840).

2^2092581 is an apocalyptic number.

It is an amenable number.

2092581 is a deficient number, since it is larger than the sum of its proper divisors (1294299).

2092581 is a wasteful number, since it uses less digits than its factorization.

2092581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 2092581 is about 1446.5756115738. The cubic root of 2092581 is about 127.9069351187.

The spelling of 2092581 in words is "two million, ninety-two thousand, five hundred eighty-one".