2195523 has 24 divisors (see below), whose sum is σ = 3521856. Its totient is φ = 1306800.

The previous prime is 2195521. The next prime is 2195527. The reversal of 2195523 is 3255912.

It is not a de Polignac number, because 2195523 - 2¹ = 2195521 is a prime.

It is an Ulam number.

2195523 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2195521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6468 + ... + 6798.

It is an arithmetic number, because the mean of its divisors is an integer number (146744).

2^2195523 is an apocalyptic number.

2195523 is a deficient number, since it is larger than the sum of its proper divisors (1326333).

2195523 is a wasteful number, since it uses less digits than its factorization.

2195523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 412 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 2195523 is about 1481.7297324411. The cubic root of 2195523 is about 129.9708613193.

The spelling of 2195523 in words is "two million, one hundred ninety-five thousand, five hundred twenty-three".