135521350 has 24 divisors (see below), whose sum is σ = 260764560. Its totient is φ = 52338720.

The previous prime is 135521341. The next prime is 135521363. The reversal of 135521350 is 53125531.

135521350 = T₂₁₂ + T₂₁₃ + ... + T₉₃₆.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45282 + ... + 48181.

It is an arithmetic number, because the mean of its divisors is an integer number (10865190).

Almost surely, 2^135521350 is an apocalyptic number.

135521350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135521350 is a deficient number, since it is larger than the sum of its proper divisors (125243210).

135521350 is a wasteful number, since it uses less digits than its factorization.

135521350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93504 (or 93499 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 135521350 is about 11641.3637517260. The cubic root of 135521350 is about 513.6523031195.

Adding to 135521350 its reverse (53125531), we get a palindrome (188646881).

The spelling of 135521350 in words is "one hundred thirty-five million, five hundred twenty-one thousand, three hundred fifty".