13442761 has 4 divisors (see below), whose sum is σ = 13696452. Its totient is φ = 13189072.

The previous prime is 13442749. The next prime is 13442791. The reversal of 13442761 is 16724431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16724431 = 61 ⋅274171.

It can be written as a sum of positive squares in 2 ways, for example, as 8294400 + 5148361 = 2880^2 + 2269^2 .

It is a cyclic number.

It is not a de Polignac number, because 13442761 - 2⁹ = 13442249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13442701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126766 + ... + 126871.

It is an arithmetic number, because the mean of its divisors is an integer number (3424113).

Almost surely, 2^13442761 is an apocalyptic number.

It is an amenable number.

13442761 is a deficient number, since it is larger than the sum of its proper divisors (253691).

13442761 is an equidigital number, since it uses as much as digits as its factorization.

13442761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253690.

The product of its digits is 4032, while the sum is 28.

The square root of 13442761 is about 3666.4370988741. The cubic root of 13442761 is about 237.7731579169.

The spelling of 13442761 in words is "thirteen million, four hundred forty-two thousand, seven hundred sixty-one".