135387145 has 4 divisors (see below), whose sum is σ = 162464580. Its totient is φ = 108309712.

The previous prime is 135387139. The next prime is 135387151. The reversal of 135387145 is 541783531.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (135387139) and next prime (135387151).

It can be written as a sum of positive squares in 2 ways, for example, as 22581504 + 112805641 = 4752^2 + 10621^2 .

It is a cyclic number.

It is not a de Polignac number, because 135387145 - 2²⁷ = 1169417 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13538710 + ... + 13538719.

It is an arithmetic number, because the mean of its divisors is an integer number (40616145).

Almost surely, 2^135387145 is an apocalyptic number.

It is an amenable number.

135387145 is a deficient number, since it is larger than the sum of its proper divisors (27077435).

135387145 is an equidigital number, since it uses as much as digits as its factorization.

135387145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27077434.

The product of its digits is 50400, while the sum is 37.

The square root of 135387145 is about 11635.5981797242. The cubic root of 135387145 is about 513.4826927594.

The spelling of 135387145 in words is "one hundred thirty-five million, three hundred eighty-seven thousand, one hundred forty-five".