211140131 has 8 divisors (see below), whose sum is σ = 214329024. Its totient is φ = 207966760.

The previous prime is 211140091. The next prime is 211140133. The reversal of 211140131 is 131041112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211140131 is a prime.

It is a super-2 number, since 2×211140131² = 89160309837394322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211140133) 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, 25136 + ... + 32466.

It is an arithmetic number, because the mean of its divisors is an integer number (26791128).

Almost surely, 2^211140131 is an apocalyptic number.

211140131 is a deficient number, since it is larger than the sum of its proper divisors (3188893).

211140131 is an equidigital number, since it uses as much as digits as its factorization.

211140131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7761.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 211140131 is about 14530.6617536849. The cubic root of 211140131 is about 595.4659448411.

Adding to 211140131 its reverse (131041112), we get a palindrome (342181243).

The spelling of 211140131 in words is "two hundred eleven million, one hundred forty thousand, one hundred thirty-one".