135779123453 has 2 divisors, whose sum is σ = 135779123454. Its totient is φ = 135779123452.

The previous prime is 135779123429. The next prime is 135779123503. The reversal of 135779123453 is 354321977531.

It is an a-pointer prime, because the next prime (135779123503) can be obtained adding 135779123453 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135778984324 + 139129 = 368482^2 + 373^2 .

It is a cyclic number.

It is not a de Polignac number, because 135779123453 - 2¹⁴ = 135779107069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135779123423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67889561726 + 67889561727.

It is an arithmetic number, because the mean of its divisors is an integer number (67889561727).

Almost surely, 2^135779123453 is an apocalyptic number.

It is an amenable number.

135779123453 is a deficient number, since it is larger than the sum of its proper divisors (1).

135779123453 is an equidigital number, since it uses as much as digits as its factorization.

135779123453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2381400, while the sum is 50.

The spelling of 135779123453 in words is "one hundred thirty-five billion, seven hundred seventy-nine million, one hundred twenty-three thousand, four hundred fifty-three".