135722573 has 8 divisors (see below), whose sum is σ = 155289792. Its totient is φ = 116199936.

The previous prime is 135722569. The next prime is 135722579. The reversal of 135722573 is 375227531.

135722573 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135722573 - 2² = 135722569 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135722579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4340 + ... + 17037.

It is an arithmetic number, because the mean of its divisors is an integer number (19411224).

Almost surely, 2^135722573 is an apocalyptic number.

It is an amenable number.

135722573 is a deficient number, since it is larger than the sum of its proper divisors (19567219).

135722573 is an equidigital number, since it uses as much as digits as its factorization.

135722573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22291.

The product of its digits is 44100, while the sum is 35.

The square root of 135722573 is about 11650.0031330468. The cubic root of 135722573 is about 513.9064021813.

The spelling of 135722573 in words is "one hundred thirty-five million, seven hundred twenty-two thousand, five hundred seventy-three".