135499356 has 18 divisors (see below), whose sum is σ = 342512352. Its totient is φ = 45166440.

The previous prime is 135499349. The next prime is 135499369. The reversal of 135499356 is 653994531.

135499356 is a `hidden beast` number, since 13 + 549 + 93 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×135499356³ (a number of 25 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1881900 + ... + 1881971.

It is an arithmetic number, because the mean of its divisors is an integer number (19028464).

Almost surely, 2^135499356 is an apocalyptic number.

It is an amenable number.

135499356 is an abundant number, since it is smaller than the sum of its proper divisors (207012996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135499356 is a wasteful number, since it uses less digits than its factorization.

135499356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3763881 (or 3763876 counting only the distinct ones).

The product of its digits is 437400, while the sum is 45.

The square root of 135499356 is about 11640.4190646213. The cubic root of 135499356 is about 513.6245144353.

The spelling of 135499356 in words is "one hundred thirty-five million, four hundred ninety-nine thousand, three hundred fifty-six".