361601761 has 2 divisors, whose sum is σ = 361601762. Its totient is φ = 361601760.

The previous prime is 361601753. The next prime is 361601767. The reversal of 361601761 is 167106163.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 351000225 + 10601536 = 18735^2 + 3256^2 .

It is a cyclic number.

It is not a de Polignac number, because 361601761 - 2³ = 361601753 is a prime.

It is a super-2 number, since 2×361601761² = 261511667116602242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (361601767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180800880 + 180800881.

It is an arithmetic number, because the mean of its divisors is an integer number (180800881).

Almost surely, 2^361601761 is an apocalyptic number.

It is an amenable number.

361601761 is a deficient number, since it is larger than the sum of its proper divisors (1).

361601761 is an equidigital number, since it uses as much as digits as its factorization.

361601761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 361601761 is about 19015.8292219929. The cubic root of 361601761 is about 712.4321542456.

The spelling of 361601761 in words is "three hundred sixty-one million, six hundred one thousand, seven hundred sixty-one".