135194815 has 8 divisors (see below), whose sum is σ = 185410080. Its totient is φ = 92704992.

The previous prime is 135194803. The next prime is 135194893. The reversal of 135194815 is 518491531.

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 135194815 - 2⁷ = 135194687 is a prime.

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, 1931320 + ... + 1931389.

It is an arithmetic number, because the mean of its divisors is an integer number (23176260).

Almost surely, 2^135194815 is an apocalyptic number.

135194815 is a deficient number, since it is larger than the sum of its proper divisors (50215265).

135194815 is an equidigital number, since it uses as much as digits as its factorization.

135194815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3862721.

The product of its digits is 21600, while the sum is 37.

The square root of 135194815 is about 11627.3305190830. The cubic root of 135194815 is about 513.2394275950.

The spelling of 135194815 in words is "one hundred thirty-five million, one hundred ninety-four thousand, eight hundred fifteen".