1945275683 has 6 divisors (see below), whose sum is σ = 2106422964. Its totient is φ = 1795638936.

The previous prime is 1945275653. The next prime is 1945275691. The reversal of 1945275683 is 3865725491.

It is a happy number.

It is not a de Polignac number, because 1945275683 - 2¹⁶ = 1945210147 is a prime.

It is a super-3 number, since 3×1945275683³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1945275653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5755085 + ... + 5755422.

It is an arithmetic number, because the mean of its divisors is an integer number (351070494).

Almost surely, 2^1945275683 is an apocalyptic number.

1945275683 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1945275683 is a deficient number, since it is larger than the sum of its proper divisors (161147281).

1945275683 is a wasteful number, since it uses less digits than its factorization.

1945275683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11510533 (or 11510520 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 50.

The square root of 1945275683 is about 44105.2795365816. The cubic root of 1945275683 is about 1248.3232308018.

The spelling of 1945275683 in words is "one billion, nine hundred forty-five million, two hundred seventy-five thousand, six hundred eighty-three".