133544141 has 8 divisors (see below), whose sum is σ = 146685120. Its totient is φ = 121014432.

The previous prime is 133544077. The next prime is 133544143. The reversal of 133544141 is 141445331.

It is a happy number.

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 133544141 - 2⁶ = 133544077 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 133544141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133544143) 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, 152360 + ... + 153233.

It is an arithmetic number, because the mean of its divisors is an integer number (18335640).

Almost surely, 2^133544141 is an apocalyptic number.

It is an amenable number.

133544141 is a deficient number, since it is larger than the sum of its proper divisors (13140979).

133544141 is a wasteful number, since it uses less digits than its factorization.

133544141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305635.

The product of its digits is 2880, while the sum is 26.

The square root of 133544141 is about 11556.1300183063. The cubic root of 133544141 is about 511.1420529980.

Adding to 133544141 its reverse (141445331), we get a palindrome (274989472).

The spelling of 133544141 in words is "one hundred thirty-three million, five hundred forty-four thousand, one hundred forty-one".