5461581 has 4 divisors (see below), whose sum is σ = 7282112. Its totient is φ = 3641052.

The previous prime is 5461567. The next prime is 5461613. The reversal of 5461581 is 1851645.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 5461581 - 2⁹ = 5461069 is a prime.

It is a super-2 number, since 2×5461581² = 59657734039122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

5461581 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5461081) 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, 910261 + ... + 910266.

It is an arithmetic number, because the mean of its divisors is an integer number (1820528).

Almost surely, 2^5461581 is an apocalyptic number.

It is an amenable number.

5461581 is a deficient number, since it is larger than the sum of its proper divisors (1820531).

5461581 is a wasteful number, since it uses less digits than its factorization.

5461581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820530.

The product of its digits is 4800, while the sum is 30.

The square root of 5461581 is about 2337.0025673927. The cubic root of 5461581 is about 176.1054486030.

The spelling of 5461581 in words is "five million, four hundred sixty-one thousand, five hundred eighty-one".