135428773 has 2 divisors, whose sum is σ = 135428774. Its totient is φ = 135428772.

The previous prime is 135428767. The next prime is 135428837. The reversal of 135428773 is 377824531.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133795489 + 1633284 = 11567^2 + 1278^2 .

It is a cyclic number.

It is not a de Polignac number, because 135428773 - 2⁹ = 135428261 is a prime.

It is equal to p_7668355 and since 135428773 and 7668355 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135458773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67714386 + 67714387.

It is an arithmetic number, because the mean of its divisors is an integer number (67714387).

Almost surely, 2^135428773 is an apocalyptic number.

It is an amenable number.

135428773 is a deficient number, since it is larger than the sum of its proper divisors (1).

135428773 is an equidigital number, since it uses as much as digits as its factorization.

135428773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 40.

The square root of 135428773 is about 11637.3868630376. The cubic root of 135428773 is about 513.5353148581.

The spelling of 135428773 in words is "one hundred thirty-five million, four hundred twenty-eight thousand, seven hundred seventy-three".