365868641 has 2 divisors, whose sum is σ = 365868642. Its totient is φ = 365868640.

The previous prime is 365868571. The next prime is 365868647. The reversal of 365868641 is 146868563.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 283585600 + 82283041 = 16840^2 + 9071^2 .

It is a cyclic number.

It is not a de Polignac number, because 365868641 - 2¹⁰ = 365867617 is a prime.

It is equal to p_19608986 and since 365868641 and 19608986 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (365868647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182934320 + 182934321.

It is an arithmetic number, because the mean of its divisors is an integer number (182934321).

Almost surely, 2^365868641 is an apocalyptic number.

It is an amenable number.

365868641 is a deficient number, since it is larger than the sum of its proper divisors (1).

365868641 is an equidigital number, since it uses as much as digits as its factorization.

365868641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829440, while the sum is 47.

The square root of 365868641 is about 19127.6930391514. The cubic root of 365868641 is about 715.2234234207.

The spelling of 365868641 in words is "three hundred sixty-five million, eight hundred sixty-eight thousand, six hundred forty-one".