135351861 has 8 divisors (see below), whose sum is σ = 180990624. Its totient is φ = 89973840.

The previous prime is 135351847. The next prime is 135351889. The reversal of 135351861 is 168153531.

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

It is not a de Polignac number, because 135351861 - 2¹⁹ = 134827573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135351761) 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 in 7 ways as a sum of consecutive naturals, for example, 63970 + ... + 66051.

It is an arithmetic number, because the mean of its divisors is an integer number (22623828).

Almost surely, 2^135351861 is an apocalyptic number.

It is an amenable number.

135351861 is a deficient number, since it is larger than the sum of its proper divisors (45638763).

135351861 is a wasteful number, since it uses less digits than its factorization.

135351861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130371.

The product of its digits is 10800, while the sum is 33.

The square root of 135351861 is about 11634.0818718109. The cubic root of 135351861 is about 513.4380816863.

The spelling of 135351861 in words is "one hundred thirty-five million, three hundred fifty-one thousand, eight hundred sixty-one".