1273945052 has 6 divisors (see below), whose sum is σ = 2229403848. Its totient is φ = 636972524.

The previous prime is 1273945033. The next prime is 1273945061. The reversal of 1273945052 is 2505493721.

It is a junction number, because it is equal to n+sod(n) for n = 1273944997 and 1273945015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159243128 + ... + 159243135.

It is an arithmetic number, because the mean of its divisors is an integer number (371567308).

Almost surely, 2^1273945052 is an apocalyptic number.

It is an amenable number.

1273945052 is a deficient number, since it is larger than the sum of its proper divisors (955458796).

1273945052 is a wasteful number, since it uses less digits than its factorization.

1273945052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318486267 (or 318486265 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 1273945052 is about 35692.3668590358. The cubic root of 1273945052 is about 1084.0522922900.

The spelling of 1273945052 in words is "one billion, two hundred seventy-three million, nine hundred forty-five thousand, fifty-two".