1378533275 has 12 divisors (see below), whose sum is σ = 1953578832. Its totient is φ = 945279840.

The previous prime is 1378533269. The next prime is 1378533287. The reversal of 1378533275 is 5723358731.

It is not a de Polignac number, because 1378533275 - 2⁸ = 1378533019 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3938492 + ... + 3938841.

It is an arithmetic number, because the mean of its divisors is an integer number (162798236).

Almost surely, 2^1378533275 is an apocalyptic number.

1378533275 is a deficient number, since it is larger than the sum of its proper divisors (575045557).

1378533275 is an equidigital number, since it uses as much as digits as its factorization.

1378533275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7877350 (or 7877345 counting only the distinct ones).

The product of its digits is 529200, while the sum is 44.

The square root of 1378533275 is about 37128.6045388189. The cubic root of 1378533275 is about 1112.9417073601.

The spelling of 1378533275 in words is "one billion, three hundred seventy-eight million, five hundred thirty-three thousand, two hundred seventy-five".