4185545 has 16 divisors (see below), whose sum is σ = 6182400. Its totient is φ = 2649024.

The previous prime is 4185523. The next prime is 4185547. The reversal of 4185545 is 5455814.

4185545 = 23² + 24² + ... + 232².

It is not a de Polignac number, because 4185545 - 2⁶ = 4185481 is a prime.

It is a super-3 number, since 3×4185545³ (a number of 21 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (4185547) 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, 4145 + ... + 5054.

It is an arithmetic number, because the mean of its divisors is an integer number (386400).

Almost surely, 2^4185545 is an apocalyptic number.

It is an amenable number.

4185545 is a deficient number, since it is larger than the sum of its proper divisors (1996855).

4185545 is a wasteful number, since it uses less digits than its factorization.

4185545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9224.

The product of its digits is 16000, while the sum is 32.

The square root of 4185545 is about 2045.8604546743. The cubic root of 4185545 is about 161.1575557295.

The spelling of 4185545 in words is "four million, one hundred eighty-five thousand, five hundred forty-five".