135880373 has 2 divisors, whose sum is σ = 135880374. Its totient is φ = 135880372.

The previous prime is 135880351. The next prime is 135880397. The reversal of 135880373 is 373088531.

It is a happy number.

135880373 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115068529 + 20811844 = 10727^2 + 4562^2 .

It is a cyclic number.

It is not a de Polignac number, because 135880373 - 2⁶ = 135880309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135880333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67940186 + 67940187.

It is an arithmetic number, because the mean of its divisors is an integer number (67940187).

Almost surely, 2^135880373 is an apocalyptic number.

It is an amenable number.

135880373 is a deficient number, since it is larger than the sum of its proper divisors (1).

135880373 is an equidigital number, since it uses as much as digits as its factorization.

135880373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 135880373 is about 11656.7736960104. The cubic root of 135880373 is about 514.1054921832.

The spelling of 135880373 in words is "one hundred thirty-five million, eight hundred eighty thousand, three hundred seventy-three".