67039145 has 8 divisors (see below), whose sum is σ = 80491200. Its totient is φ = 53601840.

The previous prime is 67039139. The next prime is 67039187. The reversal of 67039145 is 54193076.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 67039145 - 2²⁰ = 65990569 is a prime.

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, 14306 + ... + 18404.

It is an arithmetic number, because the mean of its divisors is an integer number (10061400).

Almost surely, 2^67039145 is an apocalyptic number.

It is an amenable number.

67039145 is a deficient number, since it is larger than the sum of its proper divisors (13452055).

67039145 is a wasteful number, since it uses less digits than its factorization.

67039145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7375.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 67039145 is about 8187.7435841629. The cubic root of 67039145 is about 406.2338937993.

The spelling of 67039145 in words is "sixty-seven million, thirty-nine thousand, one hundred forty-five".