135378433 has 8 divisors (see below), whose sum is σ = 139980960. Its totient is φ = 130837920.

The previous prime is 135378403. The next prime is 135378473. The reversal of 135378433 is 334873531.

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

It is a cyclic number.

It is not a de Polignac number, because 135378433 - 2¹³ = 135370241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135378392 and 135378401.

It is not an unprimeable number, because it can be changed into a prime (135378403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11043 + ... + 19816.

It is an arithmetic number, because the mean of its divisors is an integer number (17497620).

Almost surely, 2^135378433 is an apocalyptic number.

It is an amenable number.

135378433 is a deficient number, since it is larger than the sum of its proper divisors (4602527).

135378433 is a wasteful number, since it uses less digits than its factorization.

135378433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31007.

The product of its digits is 90720, while the sum is 37.

The square root of 135378433 is about 11635.2238053249. The cubic root of 135378433 is about 513.4716785252.

The spelling of 135378433 in words is "one hundred thirty-five million, three hundred seventy-eight thousand, four hundred thirty-three".