135578953 has 2 divisors, whose sum is σ = 135578954. Its totient is φ = 135578952.

The previous prime is 135578941. The next prime is 135578987. The reversal of 135578953 is 359875531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112423609 + 23155344 = 10603^2 + 4812^2 .

It is a cyclic number.

It is not a de Polignac number, because 135578953 - 2⁵ = 135578921 is a prime.

It is not a weakly prime, because it can be changed into another prime (135578753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67789476 + 67789477.

It is an arithmetic number, because the mean of its divisors is an integer number (67789477).

Almost surely, 2^135578953 is an apocalyptic number.

It is an amenable number.

135578953 is a deficient number, since it is larger than the sum of its proper divisors (1).

135578953 is an equidigital number, since it uses as much as digits as its factorization.

135578953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 567000, while the sum is 46.

The square root of 135578953 is about 11643.8375546896. The cubic root of 135578953 is about 513.7250683394.

It can be divided in two parts, 1355 and 78953, that added together give a palindrome (80308).

The spelling of 135578953 in words is "one hundred thirty-five million, five hundred seventy-eight thousand, nine hundred fifty-three".