2481765 has 48 divisors (see below), whose sum is σ = 4743360. Its totient is φ = 1098240.

The previous prime is 2481757. The next prime is 2481797. The reversal of 2481765 is 5671842.

2481765 = 121² + 122² + ... + 209².

It is not a de Polignac number, because 2481765 - 2³ = 2481757 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

2481765 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27841 + ... + 27929.

It is an arithmetic number, because the mean of its divisors is an integer number (98820).

2^2481765 is an apocalyptic number.

It is an amenable number.

2481765 is a deficient number, since it is larger than the sum of its proper divisors (2261595).

2481765 is a wasteful number, since it uses less digits than its factorization.

2481765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 121 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 2481765 is about 1575.3618631921. The cubic root of 2481765 is about 135.3900925632.

The spelling of 2481765 in words is "two million, four hundred eighty-one thousand, seven hundred sixty-five".