135243650 has 12 divisors (see below), whose sum is σ = 251553282. Its totient is φ = 54097440.

The previous prime is 135243623. The next prime is 135243673. The reversal of 135243650 is 56342531.

It can be written as a sum of positive squares in 3 ways, for example, as 66569281 + 68674369 = 8159^2 + 8287^2 .

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, 1352387 + ... + 1352486.

Almost surely, 2^135243650 is an apocalyptic number.

135243650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135243650 is a deficient number, since it is larger than the sum of its proper divisors (116309632).

135243650 is a wasteful number, since it uses less digits than its factorization.

135243650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2704885 (or 2704880 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 135243650 is about 11629.4303385849. The cubic root of 135243650 is about 513.3012175144.

The spelling of 135243650 in words is "one hundred thirty-five million, two hundred forty-three thousand, six hundred fifty".