13067761 has 6 divisors (see below), whose sum is σ = 15201330. Its totient is φ = 11200896.

The previous prime is 13067759. The next prime is 13067767. The reversal of 13067761 is 16776031.

It can be written as a sum of positive squares in only one way, i.e., 12496225 + 571536 = 3535^2 + 756^2 .

It is not a de Polignac number, because 13067761 - 2¹ = 13067759 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13067767) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 133296 + ... + 133393.

It is an arithmetic number, because the mean of its divisors is an integer number (2533555).

Almost surely, 2^13067761 is an apocalyptic number.

It is an amenable number.

13067761 is a deficient number, since it is larger than the sum of its proper divisors (2133569).

13067761 is an equidigital number, since it uses as much as digits as its factorization.

13067761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266703 (or 266696 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 13067761 is about 3614.9358223902. The cubic root of 13067761 is about 235.5412963643.

The spelling of 13067761 in words is "thirteen million, sixty-seven thousand, seven hundred sixty-one".