265415401 has 2 divisors, whose sum is σ = 265415402. Its totient is φ = 265415400.

The previous prime is 265415387. The next prime is 265415413. The reversal of 265415401 is 104514562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230888025 + 34527376 = 15195^2 + 5876^2 .

It is a cyclic number.

It is not a de Polignac number, because 265415401 - 2⁹ = 265414889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 265415401.

It is not a weakly prime, because it can be changed into another prime (265415201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132707700 + 132707701.

It is an arithmetic number, because the mean of its divisors is an integer number (132707701).

Almost surely, 2^265415401 is an apocalyptic number.

It is an amenable number.

265415401 is a deficient number, since it is larger than the sum of its proper divisors (1).

265415401 is an equidigital number, since it uses as much as digits as its factorization.

265415401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 265415401 is about 16291.5745402340. The cubic root of 265415401 is about 642.6512745690.

Adding to 265415401 its reverse (104514562), we get a palindrome (369929963).

The spelling of 265415401 in words is "two hundred sixty-five million, four hundred fifteen thousand, four hundred one".