5805145 has 8 divisors (see below), whose sum is σ = 6982920. Its totient is φ = 4632960.

The previous prime is 5805119. The next prime is 5805161. The reversal of 5805145 is 5415085.

It can be written as a sum of positive squares in 4 ways, for example, as 1545049 + 4260096 = 1243^2 + 2064^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5805145 - 2⁵ = 5805113 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1405 + ... + 3685.

It is an arithmetic number, because the mean of its divisors is an integer number (872865).

Almost surely, 2^5805145 is an apocalyptic number.

It is an amenable number.

5805145 is a deficient number, since it is larger than the sum of its proper divisors (1177775).

5805145 is a wasteful number, since it uses less digits than its factorization.

5805145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2795.

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 5805145 is about 2409.3868514624. The cubic root of 5805145 is about 179.7232888260.

The spelling of 5805145 in words is "five million, eight hundred five thousand, one hundred forty-five".