135513550 has 48 divisors (see below), whose sum is σ = 258322752. Its totient is φ = 52876800.

The previous prime is 135513517. The next prime is 135513583. The reversal of 135513550 is 55315531.

It is an interprime number because it is at equal distance from previous prime (135513517) and next prime (135513583).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 499915 + ... + 500185.

It is an arithmetic number, because the mean of its divisors is an integer number (5381724).

Almost surely, 2^135513550 is an apocalyptic number.

135513550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135513550 is a deficient number, since it is larger than the sum of its proper divisors (122809202).

135513550 is a wasteful number, since it uses less digits than its factorization.

135513550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 5625, while the sum is 28.

The square root of 135513550 is about 11641.0287346093. The cubic root of 135513550 is about 513.6424484242.

The spelling of 135513550 in words is "one hundred thirty-five million, five hundred thirteen thousand, five hundred fifty".