67138935 has 16 divisors (see below), whose sum is σ = 110043360. Its totient is φ = 34933760.

The previous prime is 67138927. The next prime is 67138961. The reversal of 67138935 is 53983176.

It is not a de Polignac number, because 67138935 - 2³ = 67138927 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53970 + ... + 55199.

It is an arithmetic number, because the mean of its divisors is an integer number (6877710).

Almost surely, 2^67138935 is an apocalyptic number.

67138935 is a deficient number, since it is larger than the sum of its proper divisors (42904425).

67138935 is a wasteful number, since it uses less digits than its factorization.

67138935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109218.

The product of its digits is 136080, while the sum is 42.

The square root of 67138935 is about 8193.8351826236. The cubic root of 67138935 is about 406.4353580970.

The spelling of 67138935 in words is "sixty-seven million, one hundred thirty-eight thousand, nine hundred thirty-five".