135263205 has 96 divisors (see below), whose sum is σ = 295925760. Its totient is φ = 55520640.

The previous prime is 135263197. The next prime is 135263287. The reversal of 135263205 is 502362531.

It is not a de Polignac number, because 135263205 - 2³ = 135263197 is a prime.

It is a super-2 number, since 2×135263205² = 36592269253744050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 356706 + ... + 357084.

It is an arithmetic number, because the mean of its divisors is an integer number (3082560).

Almost surely, 2^135263205 is an apocalyptic number.

135263205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135263205 is an abundant number, since it is smaller than the sum of its proper divisors (160662555).

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

135263205 is a wasteful number, since it uses less digits than its factorization.

135263205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 135263205 is about 11630.2710630492. The cubic root of 135263205 is about 513.3259558824.

The spelling of 135263205 in words is "one hundred thirty-five million, two hundred sixty-three thousand, two hundred five".