135545512379 has 2 divisors, whose sum is σ = 135545512380. Its totient is φ = 135545512378.

The previous prime is 135545512343. The next prime is 135545512397. The reversal of 135545512379 is 973215545531.

Together with next prime (135545512397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135545512379 - 2²⁸ = 135277076923 is a prime.

It is not a weakly prime, because it can be changed into another prime (135545512279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67772756189 + 67772756190.

It is an arithmetic number, because the mean of its divisors is an integer number (67772756190).

Almost surely, 2^135545512379 is an apocalyptic number.

135545512379 is a deficient number, since it is larger than the sum of its proper divisors (1).

135545512379 is an equidigital number, since it uses as much as digits as its factorization.

135545512379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2835000, while the sum is 50.

The spelling of 135545512379 in words is "one hundred thirty-five billion, five hundred forty-five million, five hundred twelve thousand, three hundred seventy-nine".