7481565 has 120 divisors (see below), whose sum is σ = 17380440. Its totient is φ = 3048192.

The previous prime is 7481563. The next prime is 7481567. The reversal of 7481565 is 5651847.

7481565 = T₂₄₆ + T₂₄₇ + ... + T₃₉₀.

7481565 is digitally balanced in base 4, 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 (7481563) and next prime (7481567).

It can be written as a sum of positive squares in 4 ways, for example, as 142884 + 7338681 = 378^2 + 2709^2 .

It is not a de Polignac number, because 7481565 - 2¹ = 7481563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7481563) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 257971 + ... + 257999.

It is an arithmetic number, because the mean of its divisors is an integer number (144837).

Almost surely, 2^7481565 is an apocalyptic number.

It is an amenable number.

7481565 is an abundant number, since it is smaller than the sum of its proper divisors (9898875).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7481565 is a wasteful number, since it uses less digits than its factorization.

7481565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73 (or 57 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 7481565 is about 2735.2449616076. The cubic root of 7481565 is about 195.5828713971.

The spelling of 7481565 in words is "seven million, four hundred eighty-one thousand, five hundred sixty-five".