1378530535 has 8 divisors (see below), whose sum is σ = 1671291216. Its totient is φ = 1091454720.

The previous prime is 1378530529. The next prime is 1378530551. The reversal of 1378530535 is 5350358731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1378530535 - 2⁷ = 1378530407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1420681 + ... + 1421650.

It is an arithmetic number, because the mean of its divisors is an integer number (208911402).

Almost surely, 2^1378530535 is an apocalyptic number.

1378530535 is a deficient number, since it is larger than the sum of its proper divisors (292760681).

1378530535 is an equidigital number, since it uses as much as digits as its factorization.

1378530535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2842433.

The product of its (nonzero) digits is 189000, while the sum is 40.

The square root of 1378530535 is about 37128.5676400262. The cubic root of 1378530535 is about 1112.9409699913.

The spelling of 1378530535 in words is "one billion, three hundred seventy-eight million, five hundred thirty thousand, five hundred thirty-five".