135290088 has 80 divisors (see below), whose sum is σ = 382805280. Its totient is φ = 44636832.

The previous prime is 135290087. The next prime is 135290123. The reversal of 135290088 is 880092531.

It is a super-2 number, since 2×135290088² = 36606815822095488, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (135290087) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 65731 + ... + 67757.

It is an arithmetic number, because the mean of its divisors is an integer number (4785066).

Almost surely, 2^135290088 is an apocalyptic number.

135290088 is a gapful number since it is divisible by the number (18) 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 135290088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191402640).

135290088 is an abundant number, since it is smaller than the sum of its proper divisors (247515192).

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

135290088 is a wasteful number, since it uses less digits than its factorization.

135290088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2148 (or 2135 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 135290088 is about 11631.4267396567. The cubic root of 135290088 is about 513.3599607634.

The spelling of 135290088 in words is "one hundred thirty-five million, two hundred ninety thousand, eighty-eight".