2481591 has 8 divisors (see below), whose sum is σ = 3781504. Its totient is φ = 1418040.

The previous prime is 2481517. The next prime is 2481601. The reversal of 2481591 is 1951842.

It is a happy number.

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

It is not a de Polignac number, because 2481591 - 2¹⁰ = 2480567 is a prime.

It is a Duffinian number.

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2481091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59065 + ... + 59106.

It is an arithmetic number, because the mean of its divisors is an integer number (472688).

2^2481591 is an apocalyptic number.

2481591 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2481591 is a deficient number, since it is larger than the sum of its proper divisors (1299913).

2481591 is a wasteful number, since it uses less digits than its factorization.

2481591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118181.

The product of its digits is 2880, while the sum is 30.

The square root of 2481591 is about 1575.3066368171. The cubic root of 2481591 is about 135.3869283600.

It can be divided in two parts, 248159 and 1, that added together give a triangular number (248160 = T₇₀₄).

The spelling of 2481591 in words is "two million, four hundred eighty-one thousand, five hundred ninety-one".