135505457 has 2 divisors, whose sum is σ = 135505458. Its totient is φ = 135505456.

The previous prime is 135505441. The next prime is 135505463. The reversal of 135505457 is 754505531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80982001 + 54523456 = 8999^2 + 7384^2 .

It is a cyclic number.

It is not a de Polignac number, because 135505457 - 2⁴ = 135505441 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (135505157) 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, 67752728 + 67752729.

It is an arithmetic number, because the mean of its divisors is an integer number (67752729).

Almost surely, 2^135505457 is an apocalyptic number.

It is an amenable number.

135505457 is a deficient number, since it is larger than the sum of its proper divisors (1).

135505457 is an equidigital number, since it uses as much as digits as its factorization.

135505457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52500, while the sum is 35.

The square root of 135505457 is about 11640.6811226835. The cubic root of 135505457 is about 513.6322231463.

The spelling of 135505457 in words is "one hundred thirty-five million, five hundred five thousand, four hundred fifty-seven".