135675905 has 4 divisors (see below), whose sum is σ = 162811092. Its totient is φ = 108540720.

The previous prime is 135675899. The next prime is 135675913. The reversal of 135675905 is 509576531.

It is a Cunningham number, because it is equal to 11648²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48832144 + 86843761 = 6988^2 + 9319^2 .

It is not a de Polignac number, because 135675905 - 2⁸ = 135675649 is a prime.

It is a Duffinian 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, 13567586 + ... + 13567595.

It is an arithmetic number, because the mean of its divisors is an integer number (40702773).

It is a Proth number, since it is equal to 8281 ⋅ 2¹⁴ + 1 and 8281 < 2¹⁴.

Almost surely, 2^135675905 is an apocalyptic number.

It is an amenable number.

135675905 is a deficient number, since it is larger than the sum of its proper divisors (27135187).

135675905 is an equidigital number, since it uses as much as digits as its factorization.

135675905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27135186.

The product of its (nonzero) digits is 141750, while the sum is 41.

The square root of 135675905 is about 11648.0000429258. Note that the first 4 decimals coincide. The cubic root of 135675905 is about 513.8474934510.

The spelling of 135675905 in words is "one hundred thirty-five million, six hundred seventy-five thousand, nine hundred five".