135229980 has 24 divisors (see below), whose sum is σ = 378644112. Its totient is φ = 36061312.

The previous prime is 135229979. The next prime is 135230009. The reversal of 135229980 is 89922531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1126857 + ... + 1126976.

It is an arithmetic number, because the mean of its divisors is an integer number (15776838).

Almost surely, 2^135229980 is an apocalyptic number.

135229980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135229980 is an abundant number, since it is smaller than the sum of its proper divisors (243414132).

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

135229980 is a wasteful number, since it uses less digits than its factorization.

135229980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2253845 (or 2253843 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 135229980 is about 11628.8425907310. The cubic root of 135229980 is about 513.2839226443.

The spelling of 135229980 in words is "one hundred thirty-five million, two hundred twenty-nine thousand, nine hundred eighty".