135326690 has 8 divisors (see below), whose sum is σ = 243588060. Its totient is φ = 54130672.

The previous prime is 135326651. The next prime is 135326699. The reversal of 135326690 is 96623531.

It is a Cunningham number, because it is equal to 11633²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 135326689 + 1 = 11633^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×135326690² = 36626626052712200, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 135326690.

It is not an unprimeable number, because it can be changed into a prime (135326699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6766325 + ... + 6766344.

Almost surely, 2^135326690 is an apocalyptic number.

135326690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135326690 is a deficient number, since it is larger than the sum of its proper divisors (108261370).

135326690 is a wasteful number, since it uses less digits than its factorization.

135326690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13532676.

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 135326690 is about 11633.0000429812. Note that the first 4 decimals coincide. The cubic root of 135326690 is about 513.4062521740.

The spelling of 135326690 in words is "one hundred thirty-five million, three hundred twenty-six thousand, six hundred ninety".