135148623588 has 144 divisors (see below), whose sum is σ = 394273152000. Its totient is φ = 38603252160.

The previous prime is 135148623587. The next prime is 135148623601. The reversal of 135148623588 is 885326841531.

135148623588 is a `hidden beast` number, since 1 + 3 + 5 + 1 + 4 + 8 + 623 + 5 + 8 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (135148623581) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1452145 + ... + 1542407.

It is an arithmetic number, because the mean of its divisors is an integer number (2738008000).

Almost surely, 2^135148623588 is an apocalyptic number.

135148623588 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 135148623588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197136576000).

135148623588 is an abundant number, since it is smaller than the sum of its proper divisors (259124528412).

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

135148623588 is a wasteful number, since it uses less digits than its factorization.

135148623588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90502 (or 90497 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 54.

The spelling of 135148623588 in words is "one hundred thirty-five billion, one hundred forty-eight million, six hundred twenty-three thousand, five hundred eighty-eight".