2145255311 has 2 divisors, whose sum is σ = 2145255312. Its totient is φ = 2145255310.

The previous prime is 2145255289. The next prime is 2145255319. The reversal of 2145255311 is 1135525412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2145255311 - 2¹⁸ = 2144993167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2145255319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072627655 + 1072627656.

It is an arithmetic number, because the mean of its divisors is an integer number (1072627656).

Almost surely, 2^2145255311 is an apocalyptic number.

2145255311 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145255311 is an equidigital number, since it uses as much as digits as its factorization.

2145255311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6000, while the sum is 29.

The square root of 2145255311 is about 46316.9009218018. The cubic root of 2145255311 is about 1289.7127559869.

It can be divided in two parts, 214 and 5255311, that added together give a palindrome (5255525).

The spelling of 2145255311 in words is "two billion, one hundred forty-five million, two hundred fifty-five thousand, three hundred eleven".