361605143 has 2 divisors, whose sum is σ = 361605144. Its totient is φ = 361605142.

The previous prime is 361605053. The next prime is 361605163. The reversal of 361605143 is 341506163.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-361605143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (361605163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180802571 + 180802572.

It is an arithmetic number, because the mean of its divisors is an integer number (180802572).

Almost surely, 2^361605143 is an apocalyptic number.

361605143 is a deficient number, since it is larger than the sum of its proper divisors (1).

361605143 is an equidigital number, since it uses as much as digits as its factorization.

361605143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 361605143 is about 19015.9181476993. The cubic root of 361605143 is about 712.4343753245.

The spelling of 361605143 in words is "three hundred sixty-one million, six hundred five thousand, one hundred forty-three".