2145280293 has 24 divisors (see below), whose sum is σ = 3352108032. Its totient is φ = 1314236448.

The previous prime is 2145280289. The next prime is 2145280331. The reversal of 2145280293 is 3920825412.

It is a happy number.

It is not a de Polignac number, because 2145280293 - 2² = 2145280289 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145280223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15021 + ... + 67202.

It is an arithmetic number, because the mean of its divisors is an integer number (139671168).

Almost surely, 2^2145280293 is an apocalyptic number.

It is an amenable number.

2145280293 is a deficient number, since it is larger than the sum of its proper divisors (1206827739).

2145280293 is a wasteful number, since it uses less digits than its factorization.

2145280293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82465 (or 82462 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 2145280293 is about 46317.1706065904. The cubic root of 2145280293 is about 1289.7177623031.

The spelling of 2145280293 in words is "two billion, one hundred forty-five million, two hundred eighty thousand, two hundred ninety-three".