67144253 has 4 divisors (see below), whose sum is σ = 73248288. Its totient is φ = 61040220.

The previous prime is 67144249. The next prime is 67144267. The reversal of 67144253 is 35244176.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 67144253 - 2² = 67144249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67144223) 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, 3052001 + ... + 3052022.

It is an arithmetic number, because the mean of its divisors is an integer number (18312072).

Almost surely, 2^67144253 is an apocalyptic number.

It is an amenable number.

67144253 is a deficient number, since it is larger than the sum of its proper divisors (6104035).

67144253 is a wasteful number, since it uses less digits than its factorization.

67144253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6104034.

The product of its digits is 20160, while the sum is 32.

The square root of 67144253 is about 8194.1596884610. The cubic root of 67144253 is about 406.4460889105.

The spelling of 67144253 in words is "sixty-seven million, one hundred forty-four thousand, two hundred fifty-three".