135784741 has 2 divisors, whose sum is σ = 135784742. Its totient is φ = 135784740.

The previous prime is 135784723. The next prime is 135784823. The reversal of 135784741 is 147487531.

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., 134212225 + 1572516 = 11585^2 + 1254^2 .

It is a cyclic number.

It is not a de Polignac number, because 135784741 - 2⁷ = 135784613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135784694 and 135784703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135782741) 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, 67892370 + 67892371.

It is an arithmetic number, because the mean of its divisors is an integer number (67892371).

Almost surely, 2^135784741 is an apocalyptic number.

It is an amenable number.

135784741 is a deficient number, since it is larger than the sum of its proper divisors (1).

135784741 is an equidigital number, since it uses as much as digits as its factorization.

135784741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94080, while the sum is 40.

The square root of 135784741 is about 11652.6709813673. The cubic root of 135784741 is about 513.9848554941.

The spelling of 135784741 in words is "one hundred thirty-five million, seven hundred eighty-four thousand, seven hundred forty-one".