2273351645 has 6 divisors (see below), whose sum is σ = 2728149918. Its totient is φ = 1818596024.

The previous prime is 2273351629. The next prime is 2273351651. The reversal of 2273351645 is 5461533722.

2273351645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1818681316 + 454670329 = 42646^2 + 21323^2 .

It is not a de Polignac number, because 2273351645 - 2⁴ = 2273351629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2273351599 and 2273351608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 95954 + ... + 117276.

It is an arithmetic number, because the mean of its divisors is an integer number (454691653).

Almost surely, 2^2273351645 is an apocalyptic number.

It is an amenable number.

2273351645 is a deficient number, since it is larger than the sum of its proper divisors (454798273).

2273351645 is an frugal number, since it uses more digits than its factorization.

2273351645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42651 (or 21328 counting only the distinct ones).

The product of its digits is 151200, while the sum is 38.

The square root of 2273351645 is about 47679.6774842280. The cubic root of 2273351645 is about 1314.8883354897. Note that the first 3 decimals are identical.

The spelling of 2273351645 in words is "two billion, two hundred seventy-three million, three hundred fifty-one thousand, six hundred forty-five".