133435241 has 4 divisors (see below), whose sum is σ = 134756484. Its totient is φ = 132114000.

The previous prime is 133435231. The next prime is 133435307. The reversal of 133435241 is 142534331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63361600 + 70073641 = 7960^2 + 8371^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133435241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133435241.

It is not an unprimeable number, because it can be changed into a prime (133435231) 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, 660470 + ... + 660671.

It is an arithmetic number, because the mean of its divisors is an integer number (33689121).

Almost surely, 2^133435241 is an apocalyptic number.

It is an amenable number.

133435241 is a deficient number, since it is larger than the sum of its proper divisors (1321243).

133435241 is a wasteful number, since it uses less digits than its factorization.

133435241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321242.

The product of its digits is 4320, while the sum is 26.

The square root of 133435241 is about 11551.4172723523. The cubic root of 133435241 is about 511.0030764607.

Adding to 133435241 its reverse (142534331), we get a palindrome (275969572).

The spelling of 133435241 in words is "one hundred thirty-three million, four hundred thirty-five thousand, two hundred forty-one".