8513445 has 32 divisors (see below), whose sum is σ = 14192640. Its totient is φ = 4354560.

The previous prime is 8513431. The next prime is 8513459. The reversal of 8513445 is 5443158.

8513445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (8513431) and next prime (8513459).

It is not a de Polignac number, because 8513445 - 2⁴ = 8513429 is a prime.

It is an Ulam number.

8513445 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66972 + ... + 67098.

It is an arithmetic number, because the mean of its divisors is an integer number (443520).

Almost surely, 2^8513445 is an apocalyptic number.

It is an amenable number.

8513445 is a deficient number, since it is larger than the sum of its proper divisors (5679195).

8513445 is a wasteful number, since it uses less digits than its factorization.

8513445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285.

The product of its digits is 9600, while the sum is 30.

The square root of 8513445 is about 2917.7808348126. The cubic root of 8513445 is about 204.1903020442.

It can be divided in two parts, 85 and 13445, that added together give a triangular number (13530 = T₁₆₄).

The spelling of 8513445 in words is "eight million, five hundred thirteen thousand, four hundred forty-five".