67013144 has 32 divisors (see below), whose sum is σ = 139406400. Its totient is φ = 29941920.

The previous prime is 67013123. The next prime is 67013159. The reversal of 67013144 is 44131076.

It is a super-2 number, since 2×67013144² = 8981522937529472, which contains 22 as substring.

It is a congruent number.

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, 1262 + ... + 11645.

It is an arithmetic number, because the mean of its divisors is an integer number (4356450).

Almost surely, 2^67013144 is an apocalyptic number.

It is an amenable number.

67013144 is an abundant number, since it is smaller than the sum of its proper divisors (72393256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67013144 is a wasteful number, since it uses less digits than its factorization.

67013144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12983 (or 12979 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 67013144 is about 8186.1556300867. The cubic root of 67013144 is about 406.1813680036.

The spelling of 67013144 in words is "sixty-seven million, thirteen thousand, one hundred forty-four".