135907869 has 8 divisors (see below), whose sum is σ = 182904480. Its totient is φ = 89758256.

The previous prime is 135907867. The next prime is 135907873. The reversal of 135907869 is 968709531.

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

It is a cyclic number.

It is not a de Polignac number, because 135907869 - 2¹ = 135907867 is a prime.

It is a super-2 number, since 2×135907869² = 36941897712242322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135907861) 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, 211374 + ... + 212015.

It is an arithmetic number, because the mean of its divisors is an integer number (22863060).

Almost surely, 2^135907869 is an apocalyptic number.

It is an amenable number.

135907869 is a deficient number, since it is larger than the sum of its proper divisors (46996611).

135907869 is a wasteful number, since it uses less digits than its factorization.

135907869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423499.

The product of its (nonzero) digits is 408240, while the sum is 48.

The square root of 135907869 is about 11657.9530364468. The cubic root of 135907869 is about 514.1401670248.

The spelling of 135907869 in words is "one hundred thirty-five million, nine hundred seven thousand, eight hundred sixty-nine".