135405345 has 16 divisors (see below), whose sum is σ = 218754432. Its totient is φ = 71514240.

The previous prime is 135405331. The next prime is 135405353. The reversal of 135405345 is 543504531.

It is not a de Polignac number, because 135405345 - 2⁷ = 135405217 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42276 + ... + 45365.

It is an arithmetic number, because the mean of its divisors is an integer number (13672152).

Almost surely, 2^135405345 is an apocalyptic number.

135405345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135405345 is a deficient number, since it is larger than the sum of its proper divisors (83349087).

135405345 is a wasteful number, since it uses less digits than its factorization.

135405345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87752.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 135405345 is about 11636.3802361387. The cubic root of 135405345 is about 513.5057007692.

Adding to 135405345 its reverse (543504531), we get a palindrome (678909876).

The spelling of 135405345 in words is "one hundred thirty-five million, four hundred five thousand, three hundred forty-five".