135491080 has 32 divisors (see below), whose sum is σ = 314691840. Its totient is φ = 52447680.

The previous prime is 135491063. The next prime is 135491087. The reversal of 135491080 is 80194531.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (135491087) 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, 53394 + ... + 55873.

It is an arithmetic number, because the mean of its divisors is an integer number (9834120).

Almost surely, 2^135491080 is an apocalyptic number.

135491080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135491080 is an abundant number, since it is smaller than the sum of its proper divisors (179200760).

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

135491080 is a wasteful number, since it uses less digits than its factorization.

135491080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109309 (or 109305 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 135491080 is about 11640.0635737096. The cubic root of 135491080 is about 513.6140572072.

The spelling of 135491080 in words is "one hundred thirty-five million, four hundred ninety-one thousand, eighty".