20067131 has 8 divisors (see below), whose sum is σ = 23021280. Its totient is φ = 17134848.

The previous prime is 20067121. The next prime is 20067149. The reversal of 20067131 is 13176002.

It is a happy number.

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 20067131 - 2⁶ = 20067067 is a prime.

It is a super-2 number, since 2×20067131² = 805379493142322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20067121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3446 + ... + 7211.

It is an arithmetic number, because the mean of its divisors is an integer number (2877660).

Almost surely, 2^20067131 is an apocalyptic number.

20067131 is a deficient number, since it is larger than the sum of its proper divisors (2954149).

20067131 is a wasteful number, since it uses less digits than its factorization.

20067131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10933.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 20067131 is about 4479.6351413927. The cubic root of 20067131 is about 271.7451251091.

The spelling of 20067131 in words is "twenty million, sixty-seven thousand, one hundred thirty-one".