4086545 has 16 divisors (see below), whose sum is σ = 5246208. Its totient is φ = 3045120.

The previous prime is 4086529. The next prime is 4086559. The reversal of 4086545 is 5456804.

It is not a de Polignac number, because 4086545 - 2⁴ = 4086529 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10952 + ... + 11318.

It is an arithmetic number, because the mean of its divisors is an integer number (327888).

Almost surely, 2^4086545 is an apocalyptic number.

It is an amenable number.

4086545 is a deficient number, since it is larger than the sum of its proper divisors (1159663).

4086545 is a wasteful number, since it uses less digits than its factorization.

4086545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 4086545 is about 2021.5204673710. The cubic root of 4086545 is about 159.8767931707.

The spelling of 4086545 in words is "four million, eighty-six thousand, five hundred forty-five".