135906766 has 4 divisors (see below), whose sum is σ = 203860152. Its totient is φ = 67953382.

The previous prime is 135906761. The next prime is 135906769. The reversal of 135906766 is 667609531.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135906761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33976690 + ... + 33976693.

It is an arithmetic number, because the mean of its divisors is an integer number (50965038).

Almost surely, 2^135906766 is an apocalyptic number.

135906766 is a deficient number, since it is larger than the sum of its proper divisors (67953386).

135906766 is an equidigital number, since it uses as much as digits as its factorization.

135906766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67953385.

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 135906766 is about 11657.9057295897. The cubic root of 135906766 is about 514.1387761362.

The spelling of 135906766 in words is "one hundred thirty-five million, nine hundred six thousand, seven hundred sixty-six".