67616149 has 8 divisors (see below), whose sum is σ = 68651712. Its totient is φ = 66588480.

The previous prime is 67616147. The next prime is 67616161. The reversal of 67616149 is 94161676.

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

It is a cyclic number.

It is not a de Polignac number, because 67616149 - 2¹ = 67616147 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67616141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16584 + ... + 20254.

It is an arithmetic number, because the mean of its divisors is an integer number (8581464).

Almost surely, 2^67616149 is an apocalyptic number.

It is an amenable number.

67616149 is a deficient number, since it is larger than the sum of its proper divisors (1035563).

67616149 is a wasteful number, since it uses less digits than its factorization.

67616149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3947.

The product of its digits is 54432, while the sum is 40.

The square root of 67616149 is about 8222.9039274456. The cubic root of 67616149 is about 407.3960471036.

The spelling of 67616149 in words is "sixty-seven million, six hundred sixteen thousand, one hundred forty-nine".