881541 has 12 divisors (see below), whose sum is σ = 1304940. Its totient is φ = 573120.

The previous prime is 881539. The next prime is 881591. The reversal of 881541 is 145188.

It can be written as a sum of positive squares in 2 ways, for example, as 108900 + 772641 = 330^2 + 879^2 .

It is not a de Polignac number, because 881541 - 2¹ = 881539 is a prime.

It is a super-2 number, since 2×881541² = 1554229069362, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (881591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 826 + ... + 1563.

It is an arithmetic number, because the mean of its divisors is an integer number (108745).

2⁸⁸¹⁵⁴¹ is an apocalyptic number.

It is an amenable number.

881541 is a deficient number, since it is larger than the sum of its proper divisors (423399).

881541 is a wasteful number, since it uses less digits than its factorization.

881541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2436 (or 2433 counting only the distinct ones).

The product of its digits is 1280, while the sum is 27.

The square root of 881541 is about 938.9041484625. The cubic root of 881541 is about 95.8843007193.

The spelling of 881541 in words is "eight hundred eighty-one thousand, five hundred forty-one".