135753601 has 4 divisors (see below), whose sum is σ = 136294704. Its totient is φ = 135212500.

The previous prime is 135753599. The next prime is 135753637. The reversal of 135753601 is 106357531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 106357531 = 7 ⋅15193933.

It is a cyclic number.

It is not a de Polignac number, because 135753601 - 2¹ = 135753599 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135753641) 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 in 3 ways as a sum of consecutive naturals, for example, 270175 + ... + 270676.

It is an arithmetic number, because the mean of its divisors is an integer number (34073676).

Almost surely, 2^135753601 is an apocalyptic number.

It is an amenable number.

135753601 is a deficient number, since it is larger than the sum of its proper divisors (541103).

135753601 is an equidigital number, since it uses as much as digits as its factorization.

135753601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541102.

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 135753601 is about 11651.3347304075. The cubic root of 135753601 is about 513.9455611621.

The spelling of 135753601 in words is "one hundred thirty-five million, seven hundred fifty-three thousand, six hundred one".