2104545 has 16 divisors (see below), whose sum is σ = 3390912. Its totient is φ = 1114560.

The previous prime is 2104541. The next prime is 2104547. The reversal of 2104545 is 5454012.

It is not a de Polignac number, because 2104545 - 2² = 2104541 is a prime.

2104545 is a modest number, since divided by 4545 gives 210 as remainder.

It is not an unprimeable number, because it can be changed into a prime (2104541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2190 + ... + 3000.

It is an arithmetic number, because the mean of its divisors is an integer number (211932).

2^2104545 is an apocalyptic number.

It is an amenable number.

2104545 is a deficient number, since it is larger than the sum of its proper divisors (1286367).

2104545 is a wasteful number, since it uses less digits than its factorization.

2104545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 2104545 is about 1450.7050010254. The cubic root of 2104545 is about 128.1502345696.

Adding to 2104545 its reverse (5454012), we get a palindrome (7558557).

The spelling of 2104545 in words is "two million, one hundred four thousand, five hundred forty-five".