265185001 has 2 divisors, whose sum is σ = 265185002. Its totient is φ = 265185000.

The previous prime is 265184971. The next prime is 265185029. The reversal of 265185001 is 100581562.

It is an a-pointer prime, because the next prime (265185029) can be obtained adding 265185001 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192099600 + 73085401 = 13860^2 + 8549^2 .

It is a cyclic number.

It is not a de Polignac number, because 265185001 - 2²¹ = 263087849 is a prime.

It is not a weakly prime, because it can be changed into another prime (265185061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132592500 + 132592501.

It is an arithmetic number, because the mean of its divisors is an integer number (132592501).

Almost surely, 2^265185001 is an apocalyptic number.

It is an amenable number.

265185001 is a deficient number, since it is larger than the sum of its proper divisors (1).

265185001 is an equidigital number, since it uses as much as digits as its factorization.

265185001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 265185001 is about 16284.5018652705. The cubic root of 265185001 is about 642.4652646162.

The spelling of 265185001 in words is "two hundred sixty-five million, one hundred eighty-five thousand, one".