67006121 has 16 divisors (see below), whose sum is σ = 83827968. Its totient is φ = 52142400.

The previous prime is 67006117. The next prime is 67006133. The reversal of 67006121 is 12160076.

It is a cyclic number.

It is not a de Polignac number, because 67006121 - 2² = 67006117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67006111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 485 + ... + 11586.

It is an arithmetic number, because the mean of its divisors is an integer number (5239248).

Almost surely, 2^67006121 is an apocalyptic number.

67006121 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

67006121 is a deficient number, since it is larger than the sum of its proper divisors (16821847).

67006121 is a wasteful number, since it uses less digits than its factorization.

67006121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12152.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 67006121 is about 8185.7266629176. The cubic root of 67006121 is about 406.1671781933.

Adding to 67006121 its reverse (12160076), we get a palindrome (79166197).

It can be divided in two parts, 6700 and 6121, that added together give a palindrome (12821).

The spelling of 67006121 in words is "sixty-seven million, six thousand, one hundred twenty-one".