135088216 has 8 divisors (see below), whose sum is σ = 253290420. Its totient is φ = 67544104.

The previous prime is 135088211. The next prime is 135088231. The reversal of 135088216 is 612880531.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×135088216² = 36497652204125312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135088211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8443006 + ... + 8443021.

Almost surely, 2^135088216 is an apocalyptic number.

It is an amenable number.

135088216 is a deficient number, since it is larger than the sum of its proper divisors (118202204).

135088216 is a wasteful number, since it uses less digits than its factorization.

135088216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16886033 (or 16886029 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 135088216 is about 11622.7456308740. The cubic root of 135088216 is about 513.1044983681.

The spelling of 135088216 in words is "one hundred thirty-five million, eighty-eight thousand, two hundred sixteen".