2145275241 has 4 divisors (see below), whose sum is σ = 2860366992. Its totient is φ = 1430183492.

The previous prime is 2145275239. The next prime is 2145275243. The reversal of 2145275241 is 1425725412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2145275239) and next prime (2145275243).

It is a cyclic number.

It is not a de Polignac number, because 2145275241 - 2¹ = 2145275239 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2145275243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357545871 + ... + 357545876.

It is an arithmetic number, because the mean of its divisors is an integer number (715091748).

Almost surely, 2^2145275241 is an apocalyptic number.

It is an amenable number.

2145275241 is a deficient number, since it is larger than the sum of its proper divisors (715091751).

2145275241 is an equidigital number, since it uses as much as digits as its factorization.

2145275241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715091750.

The product of its digits is 22400, while the sum is 33.

The square root of 2145275241 is about 46317.1160695482. The cubic root of 2145275241 is about 1289.7167499009.

The spelling of 2145275241 in words is "two billion, one hundred forty-five million, two hundred seventy-five thousand, two hundred forty-one".