2581130 has 8 divisors (see below), whose sum is σ = 4646052. Its totient is φ = 1032448.

The previous prime is 2581123. The next prime is 2581133. The reversal of 2581130 is 311852.

It can be written as a sum of positive squares in 2 ways, for example, as 2343961 + 237169 = 1531^2 + 487^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2581133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129047 + ... + 129066.

2^2581130 is an apocalyptic number.

2581130 is a deficient number, since it is larger than the sum of its proper divisors (2064922).

2581130 is a wasteful number, since it uses less digits than its factorization.

2581130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258120.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 2581130 is about 1606.5895555493. The cubic root of 2581130 is about 137.1734177719.

Adding to 2581130 its reverse (311852), we get a palindrome (2892982).

The spelling of 2581130 in words is "two million, five hundred eighty-one thousand, one hundred thirty".