11972141 has 2 divisors, whose sum is σ = 11972142. Its totient is φ = 11972140.

The previous prime is 11972113. The next prime is 11972143. The reversal of 11972141 is 14127911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11930116 + 42025 = 3454^2 + 205^2 .

It is a cyclic number.

It is not a de Polignac number, because 11972141 - 2¹⁰ = 11971117 is a prime.

Together with 11972143, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11972141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11972143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5986070 + 5986071.

It is an arithmetic number, because the mean of its divisors is an integer number (5986071).

Almost surely, 2^11972141 is an apocalyptic number.

It is an amenable number.

11972141 is a deficient number, since it is larger than the sum of its proper divisors (1).

11972141 is an equidigital number, since it uses as much as digits as its factorization.

11972141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504, while the sum is 26.

The square root of 11972141 is about 3460.0781783075. The cubic root of 11972141 is about 228.7655412615.

The spelling of 11972141 in words is "eleven million, nine hundred seventy-two thousand, one hundred forty-one".