67242913 has 2 divisors, whose sum is σ = 67242914. Its totient is φ = 67242912.

The previous prime is 67242899. The next prime is 67242977. The reversal of 67242913 is 31924276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47100769 + 20142144 = 6863^2 + 4488^2 .

It is a cyclic number.

It is not a de Polignac number, because 67242913 - 2⁹ = 67242401 is a prime.

It is not a weakly prime, because it can be changed into another prime (67242013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33621456 + 33621457.

It is an arithmetic number, because the mean of its divisors is an integer number (33621457).

Almost surely, 2^67242913 is an apocalyptic number.

It is an amenable number.

67242913 is a deficient number, since it is larger than the sum of its proper divisors (1).

67242913 is an equidigital number, since it uses as much as digits as its factorization.

67242913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 34.

The square root of 67242913 is about 8200.1776200275. The cubic root of 67242913 is about 406.6450652177.

The spelling of 67242913 in words is "sixty-seven million, two hundred forty-two thousand, nine hundred thirteen".