11761345 has 4 divisors (see below), whose sum is σ = 14113620. Its totient is φ = 9409072.

The previous prime is 11761339. The next prime is 11761367. The reversal of 11761345 is 54316711.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1495729 + 10265616 = 1223^2 + 3204^2 .

It is a cyclic number.

It is not a de Polignac number, because 11761345 - 2¹⁷ = 11630273 is a prime.

It is an unprimeable number.

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, 1176130 + ... + 1176139.

It is an arithmetic number, because the mean of its divisors is an integer number (3528405).

Almost surely, 2^11761345 is an apocalyptic number.

It is an amenable number.

11761345 is a deficient number, since it is larger than the sum of its proper divisors (2352275).

11761345 is an equidigital number, since it uses as much as digits as its factorization.

11761345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2352274.

The product of its digits is 2520, while the sum is 28.

The square root of 11761345 is about 3429.4817392720. The cubic root of 11761345 is about 227.4149422395.

Subtracting from 11761345 its product of digits (2520), we obtain a triangular number (11758825 = T₄₈₄₉).

The spelling of 11761345 in words is "eleven million, seven hundred sixty-one thousand, three hundred forty-five".