135570241 has 4 divisors (see below), whose sum is σ = 137286400. Its totient is φ = 133854084.

The previous prime is 135570217. The next prime is 135570251. The reversal of 135570241 is 142075531.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 135570241 - 2⁵ = 135570209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135570251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 857961 + ... + 858118.

It is an arithmetic number, because the mean of its divisors is an integer number (34321600).

Almost surely, 2^135570241 is an apocalyptic number.

It is an amenable number.

135570241 is a deficient number, since it is larger than the sum of its proper divisors (1716159).

135570241 is an equidigital number, since it uses as much as digits as its factorization.

135570241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716158.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 135570241 is about 11643.4634452125. The cubic root of 135570241 is about 513.7140644961.

The spelling of 135570241 in words is "one hundred thirty-five million, five hundred seventy thousand, two hundred forty-one".