67145338 has 16 divisors (see below), whose sum is σ = 109688040. Its totient is φ = 30640896.

The previous prime is 67145233. The next prime is 67145357. The reversal of 67145338 is 83354176.

It can be written as a sum of positive squares in 4 ways, for example, as 24334489 + 42810849 = 4933^2 + 6543^2 .

It is a junction number, because it is equal to n+sod(n) for n = 67145297 and 67145306.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12195 + ... + 16822.

Almost surely, 2^67145338 is an apocalyptic number.

67145338 is a deficient number, since it is larger than the sum of its proper divisors (42542702).

67145338 is a wasteful number, since it uses less digits than its factorization.

67145338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29121.

The product of its digits is 60480, while the sum is 37.

The square root of 67145338 is about 8194.2258938841. The cubic root of 67145338 is about 406.4482781851.

The spelling of 67145338 in words is "sixty-seven million, one hundred forty-five thousand, three hundred thirty-eight".