1378076533 has 4 divisors (see below), whose sum is σ = 1437992928. Its totient is φ = 1318160140.

The previous prime is 1378076477. The next prime is 1378076551. The reversal of 1378076533 is 3356708731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1378076533 - 2¹⁷ = 1377945461 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1378076533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378076563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29958163 + ... + 29958208.

It is an arithmetic number, because the mean of its divisors is an integer number (359498232).

Almost surely, 2^1378076533 is an apocalyptic number.

It is an amenable number.

1378076533 is a deficient number, since it is larger than the sum of its proper divisors (59916395).

1378076533 is an equidigital number, since it uses as much as digits as its factorization.

1378076533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59916394.

The product of its (nonzero) digits is 317520, while the sum is 43.

The square root of 1378076533 is about 37122.4532190425. The cubic root of 1378076533 is about 1112.8187787902.

The spelling of 1378076533 in words is "one billion, three hundred seventy-eight million, seventy-six thousand, five hundred thirty-three".