135819746 has 4 divisors (see below), whose sum is σ = 203729622. Its totient is φ = 67909872.

The previous prime is 135819743. The next prime is 135819751. The reversal of 135819746 is 647918531.

135819746 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 126450025 + 9369721 = 11245^2 + 3061^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 135819697 and 135819706.

It is not an unprimeable number, because it can be changed into a prime (135819743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33954935 + ... + 33954938.

Almost surely, 2^135819746 is an apocalyptic number.

135819746 is a deficient number, since it is larger than the sum of its proper divisors (67909876).

135819746 is an equidigital number, since it uses as much as digits as its factorization.

135819746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67909875.

The product of its digits is 181440, while the sum is 44.

The square root of 135819746 is about 11654.1729007253. The cubic root of 135819746 is about 514.0290197447.

The spelling of 135819746 in words is "one hundred thirty-five million, eight hundred nineteen thousand, seven hundred forty-six".