135862879 has 2 divisors, whose sum is σ = 135862880. Its totient is φ = 135862878.

The previous prime is 135862873. The next prime is 135862919. The reversal of 135862879 is 978268531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135862879 - 2¹³ = 135854687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135862873) 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 as a sum of consecutive naturals, namely, 67931439 + 67931440.

It is an arithmetic number, because the mean of its divisors is an integer number (67931440).

Almost surely, 2^135862879 is an apocalyptic number.

135862879 is a deficient number, since it is larger than the sum of its proper divisors (1).

135862879 is an equidigital number, since it uses as much as digits as its factorization.

135862879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 49.

The square root of 135862879 is about 11656.0232927015. The cubic root of 135862879 is about 514.0834282965.

The spelling of 135862879 in words is "one hundred thirty-five million, eight hundred sixty-two thousand, eight hundred seventy-nine".