371121869 has 2 divisors, whose sum is σ = 371121870. Its totient is φ = 371121868.

The previous prime is 371121841. The next prime is 371121887. The reversal of 371121869 is 968121173.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 344547844 + 26574025 = 18562^2 + 5155^2 .

It is an emirp because it is prime and its reverse (968121173) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 371121869 - 2²⁸ = 102686413 is a prime.

It is a super-2 number, since 2×371121869² = 275462883300106322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (371121809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 185560934 + 185560935.

It is an arithmetic number, because the mean of its divisors is an integer number (185560935).

Almost surely, 2^371121869 is an apocalyptic number.

It is an amenable number.

371121869 is a deficient number, since it is larger than the sum of its proper divisors (1).

371121869 is an equidigital number, since it uses as much as digits as its factorization.

371121869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 38.

The square root of 371121869 is about 19264.5235861155. The cubic root of 371121869 is about 718.6302849486.

The spelling of 371121869 in words is "three hundred seventy-one million, one hundred twenty-one thousand, eight hundred sixty-nine".