361373869 has 2 divisors, whose sum is σ = 361373870. Its totient is φ = 361373868.

The previous prime is 361373867. The next prime is 361373897. The reversal of 361373869 is 968373163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 350064100 + 11309769 = 18710^2 + 3363^2 .

It is a cyclic number.

It is not a de Polignac number, because 361373869 - 2¹ = 361373867 is a prime.

It is a super-2 number, since 2×361373869² = 261182146392058322, which contains 22 as substring.

Together with 361373867, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (361373867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180686934 + 180686935.

It is an arithmetic number, because the mean of its divisors is an integer number (180686935).

Almost surely, 2^361373869 is an apocalyptic number.

It is an amenable number.

361373869 is a deficient number, since it is larger than the sum of its proper divisors (1).

361373869 is an equidigital number, since it uses as much as digits as its factorization.

361373869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 46.

The square root of 361373869 is about 19009.8361118659. The cubic root of 361373869 is about 712.2824576038.

The spelling of 361373869 in words is "three hundred sixty-one million, three hundred seventy-three thousand, eight hundred sixty-nine".