135372587 has 24 divisors (see below), whose sum is σ = 165980160. Its totient is φ = 107853120.

The previous prime is 135372553. The next prime is 135372599. The reversal of 135372587 is 785273531.

It is not a de Polignac number, because 135372587 - 2⁸ = 135372331 is a prime.

It is a super-2 number, since 2×135372587² = 36651474622145138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135372287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 708662 + ... + 708852.

It is an arithmetic number, because the mean of its divisors is an integer number (6915840).

Almost surely, 2^135372587 is an apocalyptic number.

135372587 is a deficient number, since it is larger than the sum of its proper divisors (30607573).

135372587 is an equidigital number, since it uses as much as digits as its factorization.

135372587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363 (or 290 counting only the distinct ones).

The product of its digits is 176400, while the sum is 41.

The square root of 135372587 is about 11634.9725826922. The cubic root of 135372587 is about 513.4642873955.

The spelling of 135372587 in words is "one hundred thirty-five million, three hundred seventy-two thousand, five hundred eighty-seven".