135502373 has 2 divisors, whose sum is σ = 135502374. Its totient is φ = 135502372.

The previous prime is 135502337. The next prime is 135502469. The reversal of 135502373 is 373205531.

Together with previous prime (135502337) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90973444 + 44528929 = 9538^2 + 6673^2 .

It is an emirp because it is prime and its reverse (373205531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135502373 - 2⁶ = 135502309 is a prime.

It is a super-2 number, since 2×135502373² = 36721786177262258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135502273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67751186 + 67751187.

It is an arithmetic number, because the mean of its divisors is an integer number (67751187).

Almost surely, 2^135502373 is an apocalyptic number.

It is an amenable number.

135502373 is a deficient number, since it is larger than the sum of its proper divisors (1).

135502373 is an equidigital number, since it uses as much as digits as its factorization.

135502373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9450, while the sum is 29.

The square root of 135502373 is about 11640.5486554543. The cubic root of 135502373 is about 513.6283264920.

The spelling of 135502373 in words is "one hundred thirty-five million, five hundred two thousand, three hundred seventy-three".