67061138 has 4 divisors (see below), whose sum is σ = 100591710. Its totient is φ = 33530568.

The previous prime is 67061119. The next prime is 67061147. The reversal of 67061138 is 83116076.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 45873529 + 21187609 = 6773^2 + 4603^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16765283 + ... + 16765286.

Almost surely, 2^67061138 is an apocalyptic number.

67061138 is a deficient number, since it is larger than the sum of its proper divisors (33530572).

67061138 is a wasteful number, since it uses less digits than its factorization.

67061138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33530571.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 67061138 is about 8189.0865180434. The cubic root of 67061138 is about 406.2783122517.

The spelling of 67061138 in words is "sixty-seven million, sixty-one thousand, one hundred thirty-eight".