67361545 has 4 divisors (see below), whose sum is σ = 80833860. Its totient is φ = 53889232.

The previous prime is 67361513. The next prime is 67361561. The reversal of 67361545 is 54516376.

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 17842176 + 49519369 = 4224^2 + 7037^2 .

It is a cyclic number.

It is not a de Polignac number, because 67361545 - 2⁵ = 67361513 is a prime.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6736150 + ... + 6736159.

It is an arithmetic number, because the mean of its divisors is an integer number (20208465).

Almost surely, 2^67361545 is an apocalyptic number.

It is an amenable number.

67361545 is a deficient number, since it is larger than the sum of its proper divisors (13472315).

67361545 is a wasteful number, since it uses less digits than its factorization.

67361545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13472314.

The product of its digits is 75600, while the sum is 37.

The square root of 67361545 is about 8207.4079342994. The cubic root of 67361545 is about 406.8840632697.

It can be divided in two parts, 6736 and 1545, that added together give a square (8281 = 91²).

The spelling of 67361545 in words is "sixty-seven million, three hundred sixty-one thousand, five hundred forty-five".