10881601 has 4 divisors (see below), whose sum is σ = 10888900. Its totient is φ = 10874304.

The previous prime is 10881593. The next prime is 10881613. The reversal of 10881601 is 10618801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10618801 = 23 ⋅461687.

It can be written as a sum of positive squares in 2 ways, for example, as 10240000 + 641601 = 3200^2 + 801^2 .

It is a cyclic number.

It is not a de Polignac number, because 10881601 - 2³ = 10881593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10881631) 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, 516 + ... + 4693.

It is an arithmetic number, because the mean of its divisors is an integer number (2722225).

Almost surely, 2^10881601 is an apocalyptic number.

It is an amenable number.

10881601 is a deficient number, since it is larger than the sum of its proper divisors (7299).

10881601 is an equidigital number, since it uses as much as digits as its factorization.

10881601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7298.

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 10881601 is about 3298.7271787767. The cubic root of 10881601 is about 221.5971986009.

The spelling of 10881601 in words is "ten million, eight hundred eighty-one thousand, six hundred one".