814365901 has 2 divisors, whose sum is σ = 814365902. Its totient is φ = 814365900.

The previous prime is 814365883. The next prime is 814365941. The reversal of 814365901 is 109563418.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 727596676 + 86769225 = 26974^2 + 9315^2 .

It is a cyclic number.

It is not a de Polignac number, because 814365901 - 2⁵ = 814365869 is a prime.

It is equal to p_41846725 and since 814365901 and 41846725 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (814365941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 407182950 + 407182951.

It is an arithmetic number, because the mean of its divisors is an integer number (407182951).

Almost surely, 2^814365901 is an apocalyptic number.

It is an amenable number.

814365901 is a deficient number, since it is larger than the sum of its proper divisors (1).

814365901 is an equidigital number, since it uses as much as digits as its factorization.

814365901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 814365901 is about 28537.0969266322. The cubic root of 814365901 is about 933.8415504130.

The spelling of 814365901 in words is "eight hundred fourteen million, three hundred sixty-five thousand, nine hundred one".