361560869 has 2 divisors, whose sum is σ = 361560870. Its totient is φ = 361560868.

The previous prime is 361560863. The next prime is 361560907. The reversal of 361560869 is 968065163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 339112225 + 22448644 = 18415^2 + 4738^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-361560869 is a prime.

It is a super-2 number, since 2×361560869² = 261452523984070322, 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 (361560863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180780434 + 180780435.

It is an arithmetic number, because the mean of its divisors is an integer number (180780435).

Almost surely, 2^361560869 is an apocalyptic number.

It is an amenable number.

361560869 is a deficient number, since it is larger than the sum of its proper divisors (1).

361560869 is an equidigital number, since it uses as much as digits as its factorization.

361560869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 361560869 is about 19014.7539821056. The cubic root of 361560869 is about 712.4052979293.

The spelling of 361560869 in words is "three hundred sixty-one million, five hundred sixty thousand, eight hundred sixty-nine".