135541512 has 128 divisors (see below), whose sum is σ = 390451200. Its totient is φ = 44089920.

The previous prime is 135541499. The next prime is 135541513. The reversal of 135541512 is 215145531.

It is a super-2 number, since 2×135541512² = 36743002950492288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (135541513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1067193 + ... + 1067319.

It is an arithmetic number, because the mean of its divisors is an integer number (3050400).

Almost surely, 2^135541512 is an apocalyptic number.

135541512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135541512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195225600).

135541512 is an abundant number, since it is smaller than the sum of its proper divisors (254909688).

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

135541512 is an equidigital number, since it uses as much as digits as its factorization.

135541512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215 (or 193 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 135541512 is about 11642.2296833553. The cubic root of 135541512 is about 513.6777744916.

The spelling of 135541512 in words is "one hundred thirty-five million, five hundred forty-one thousand, five hundred twelve".