1336865401 has 2 divisors, whose sum is σ = 1336865402. Its totient is φ = 1336865400.

The previous prime is 1336865353. The next prime is 1336865423. The reversal of 1336865401 is 1045686331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 976625001 + 360240400 = 31251^2 + 18980^2 .

It is a cyclic number.

It is not a de Polignac number, because 1336865401 - 2⁷ = 1336865273 is a prime.

It is not a weakly prime, because it can be changed into another prime (1336865471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 668432700 + 668432701.

It is an arithmetic number, because the mean of its divisors is an integer number (668432701).

Almost surely, 2^1336865401 is an apocalyptic number.

It is an amenable number.

1336865401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1336865401 is an equidigital number, since it uses as much as digits as its factorization.

1336865401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 1336865401 is about 36563.1700075363. The cubic root of 1336865401 is about 1101.6134452401.

The spelling of 1336865401 in words is "one billion, three hundred thirty-six million, eight hundred sixty-five thousand, four hundred one".