135226661 has 8 divisors (see below), whose sum is σ = 138910464. Its totient is φ = 131576560.

The previous prime is 135226649. The next prime is 135226699. The reversal of 135226661 is 166622531.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135226661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135226621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185 + ... + 16446.

It is an arithmetic number, because the mean of its divisors is an integer number (17363808).

Almost surely, 2^135226661 is an apocalyptic number.

It is an amenable number.

135226661 is a deficient number, since it is larger than the sum of its proper divisors (3683803).

135226661 is a wasteful number, since it uses less digits than its factorization.

135226661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16851.

The product of its digits is 12960, while the sum is 32.

The square root of 135226661 is about 11628.6998843379. The cubic root of 135226661 is about 513.2797233702.

The spelling of 135226661 in words is "one hundred thirty-five million, two hundred twenty-six thousand, six hundred sixty-one".