1378153135 has 4 divisors (see below), whose sum is σ = 1653783768. Its totient is φ = 1102522504.

The previous prime is 1378153103. The next prime is 1378153141. The reversal of 1378153135 is 5313518731.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5313518731 = 461 ⋅11526071.

It is a cyclic number.

It is not a de Polignac number, because 1378153135 - 2⁵ = 1378153103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1378153094 and 1378153103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137815309 + ... + 137815318.

It is an arithmetic number, because the mean of its divisors is an integer number (413445942).

Almost surely, 2^1378153135 is an apocalyptic number.

1378153135 is a deficient number, since it is larger than the sum of its proper divisors (275630633).

1378153135 is an equidigital number, since it uses as much as digits as its factorization.

1378153135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275630632.

The product of its digits is 37800, while the sum is 37.

The square root of 1378153135 is about 37123.4849522509. The cubic root of 1378153135 is about 1112.8393975204.

The spelling of 1378153135 in words is "one billion, three hundred seventy-eight million, one hundred fifty-three thousand, one hundred thirty-five".