135151377605 has 4 divisors (see below), whose sum is σ = 162181653132. Its totient is φ = 108121102080.

The previous prime is 135151377593. The next prime is 135151377607. The reversal of 135151377605 is 506773151531.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 84816660289 + 50334717316 = 291233^2 + 224354^2 .

It is not a de Polignac number, because 135151377605 - 2¹⁴ = 135151361221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135151377607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13515137756 + ... + 13515137765.

It is an arithmetic number, because the mean of its divisors is an integer number (40545413283).

Almost surely, 2^135151377605 is an apocalyptic number.

It is an amenable number.

135151377605 is a deficient number, since it is larger than the sum of its proper divisors (27030275527).

135151377605 is an equidigital number, since it uses as much as digits as its factorization.

135151377605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27030275526.

The product of its (nonzero) digits is 330750, while the sum is 44.

The spelling of 135151377605 in words is "one hundred thirty-five billion, one hundred fifty-one million, three hundred seventy-seven thousand, six hundred five".