67745133 has 8 divisors (see below), whose sum is σ = 100363200. Its totient is φ = 45163404.

The previous prime is 67745129. The next prime is 67745141. The reversal of 67745133 is 33154776.

It is not a de Polignac number, because 67745133 - 2² = 67745129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67745933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1254513 + ... + 1254566.

It is an arithmetic number, because the mean of its divisors is an integer number (12545400).

Almost surely, 2^67745133 is an apocalyptic number.

It is an amenable number.

67745133 is a deficient number, since it is larger than the sum of its proper divisors (32618067).

67745133 is a wasteful number, since it uses less digits than its factorization.

67745133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2509088 (or 2509082 counting only the distinct ones).

The product of its digits is 52920, while the sum is 36.

The square root of 67745133 is about 8230.7431620723. The cubic root of 67745133 is about 407.6549309885.

The spelling of 67745133 in words is "sixty-seven million, seven hundred forty-five thousand, one hundred thirty-three".