67340513 has 4 divisors (see below), whose sum is σ = 67440660. Its totient is φ = 67240368.

The previous prime is 67340509. The next prime is 67340521. The reversal of 67340513 is 31504376.

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 47018449 + 20322064 = 6857^2 + 4508^2 .

It is a cyclic number.

It is not a de Polignac number, because 67340513 - 2² = 67340509 is a prime.

It is a super-2 number, since 2×67340513² = 9069489382206338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67340563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49058 + ... + 50411.

It is an arithmetic number, because the mean of its divisors is an integer number (16860165).

Almost surely, 2^67340513 is an apocalyptic number.

It is an amenable number.

67340513 is a deficient number, since it is larger than the sum of its proper divisors (100147).

67340513 is an equidigital number, since it uses as much as digits as its factorization.

67340513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100146.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 67340513 is about 8206.1265527653. The cubic root of 67340513 is about 406.8417123191.

Adding to 67340513 its reverse (31504376), we get a palindrome (98844889).

The spelling of 67340513 in words is "sixty-seven million, three hundred forty thousand, five hundred thirteen".