1773481345 has 16 divisors (see below), whose sum is σ = 2159331840. Its totient is φ = 1398052224.

The previous prime is 1773481319. The next prime is 1773481351. The reversal of 1773481345 is 5431843771.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1773481345 - 2¹¹ = 1773479297 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 650896 + ... + 653614.

It is an arithmetic number, because the mean of its divisors is an integer number (134958240).

Almost surely, 2^1773481345 is an apocalyptic number.

It is an amenable number.

1773481345 is a deficient number, since it is larger than the sum of its proper divisors (385850495).

1773481345 is a wasteful number, since it uses less digits than its factorization.

1773481345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4584.

The product of its digits is 282240, while the sum is 43.

The square root of 1773481345 is about 42112.7218901842. The cubic root of 1773481345 is about 1210.4370492778.

It can be divided in two parts, 177 and 3481345, that multiplied together give a triangular number (616198065 = T₃₅₁₀₅).

The spelling of 1773481345 in words is "one billion, seven hundred seventy-three million, four hundred eighty-one thousand, three hundred forty-five".