212160131 has 4 divisors (see below), whose sum is σ = 212738592. Its totient is φ = 211581672.

The previous prime is 212160127. The next prime is 212160139. The reversal of 212160131 is 131061212.

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

It is a cyclic number.

It is not a de Polignac number, because 212160131 - 2² = 212160127 is a prime.

It is a super-2 number, since 2×212160131² = 90023842371874322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212160139) 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 3 ways as a sum of consecutive naturals, for example, 288680 + ... + 289413.

It is an arithmetic number, because the mean of its divisors is an integer number (53184648).

Almost surely, 2^212160131 is an apocalyptic number.

212160131 is a deficient number, since it is larger than the sum of its proper divisors (578461).

212160131 is an equidigital number, since it uses as much as digits as its factorization.

212160131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578460.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 212160131 is about 14565.7176616877. The cubic root of 212160131 is about 596.4232866438.

The spelling of 212160131 in words is "two hundred twelve million, one hundred sixty thousand, one hundred thirty-one".