135158020 has 24 divisors (see below), whose sum is σ = 298771200. Its totient is φ = 51217632.

The previous prime is 135158011. The next prime is 135158027. The reversal of 135158020 is 20851531.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (135158027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177460 + ... + 178219.

It is an arithmetic number, because the mean of its divisors is an integer number (12448800).

Almost surely, 2^135158020 is an apocalyptic number.

135158020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135158020 is an abundant number, since it is smaller than the sum of its proper divisors (163613180).

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

135158020 is a wasteful number, since it uses less digits than its factorization.

135158020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355707 (or 355705 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 135158020 is about 11625.7481479688. The cubic root of 135158020 is about 513.1928618096.

The spelling of 135158020 in words is "one hundred thirty-five million, one hundred fifty-eight thousand, twenty".