2681523 has 36 divisors (see below), whose sum is σ = 4396392. Its totient is φ = 1572480.

The previous prime is 2681521. The next prime is 2681533. The reversal of 2681523 is 3251862.

It is not a de Polignac number, because 2681523 - 2¹ = 2681521 is a prime.

2681523 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2681521) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 62340 + ... + 62382.

It is an arithmetic number, because the mean of its divisors is an integer number (122122).

2^2681523 is an apocalyptic number.

2681523 is a deficient number, since it is larger than the sum of its proper divisors (1714869).

2681523 is a wasteful number, since it uses less digits than its factorization.

2681523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 100 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 2681523 is about 1637.5356484669. The cubic root of 2681523 is about 138.9292982744.

The spelling of 2681523 in words is "two million, six hundred eighty-one thousand, five hundred twenty-three".