67157271 has 24 divisors (see below), whose sum is σ = 100340240. Its totient is φ = 43255296.

The previous prime is 67157261. The next prime is 67157287. The reversal of 67157271 is 17275176.

It is not a de Polignac number, because 67157271 - 2⁹ = 67156759 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 (67157231) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 36645 + ... + 38433.

Almost surely, 2^67157271 is an apocalyptic number.

67157271 is a deficient number, since it is larger than the sum of its proper divisors (33182969).

67157271 is a wasteful number, since it uses less digits than its factorization.

67157271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935 (or 1932 counting only the distinct ones).

The product of its digits is 20580, while the sum is 36.

The square root of 67157271 is about 8194.9539962101. The cubic root of 67157271 is about 406.4723546147.

The spelling of 67157271 in words is "sixty-seven million, one hundred fifty-seven thousand, two hundred seventy-one".