67042313 has 4 divisors (see below), whose sum is σ = 72199428. Its totient is φ = 61885200.

The previous prime is 67042307. The next prime is 67042363. The reversal of 67042313 is 31324076.

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 19114384 + 47927929 = 4372^2 + 6923^2 .

It is not a de Polignac number, because 67042313 - 2⁶ = 67042249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67042363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2578538 + ... + 2578563.

It is an arithmetic number, because the mean of its divisors is an integer number (18049857).

Almost surely, 2^67042313 is an apocalyptic number.

It is an amenable number.

67042313 is a deficient number, since it is larger than the sum of its proper divisors (5157115).

67042313 is a wasteful number, since it uses less digits than its factorization.

67042313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5157114.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 67042313 is about 8187.9370417707. The cubic root of 67042313 is about 406.2402926911.

Adding to 67042313 its reverse (31324076), we get a palindrome (98366389).

The spelling of 67042313 in words is "sixty-seven million, forty-two thousand, three hundred thirteen".