365247161 has 2 divisors, whose sum is σ = 365247162. Its totient is φ = 365247160.

The previous prime is 365247149. The next prime is 365247263. The reversal of 365247161 is 161742563.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 358382761 + 6864400 = 18931^2 + 2620^2 .

It is a cyclic number.

It is not a de Polignac number, because 365247161 - 2⁶ = 365247097 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (365247101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182623580 + 182623581.

It is an arithmetic number, because the mean of its divisors is an integer number (182623581).

Almost surely, 2^365247161 is an apocalyptic number.

It is an amenable number.

365247161 is a deficient number, since it is larger than the sum of its proper divisors (1).

365247161 is an equidigital number, since it uses as much as digits as its factorization.

365247161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 35.

The square root of 365247161 is about 19111.4405788784. The cubic root of 365247161 is about 714.8182242848.

The spelling of 365247161 in words is "three hundred sixty-five million, two hundred forty-seven thousand, one hundred sixty-one".