133141405 has 8 divisors (see below), whose sum is σ = 161321472. Its totient is φ = 105478608.

The previous prime is 133141397. The next prime is 133141409. The reversal of 133141405 is 504141331.

133141405 = 120² + 121² + ... + 737².

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 133141405 - 2³ = 133141397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133141409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128749 + ... + 129778.

It is an arithmetic number, because the mean of its divisors is an integer number (20165184).

Almost surely, 2^133141405 is an apocalyptic number.

It is an amenable number.

133141405 is a deficient number, since it is larger than the sum of its proper divisors (28180067).

133141405 is a wasteful number, since it uses less digits than its factorization.

133141405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258635.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 133141405 is about 11538.6916502695. The cubic root of 133141405 is about 510.6277097306.

Adding to 133141405 its reverse (504141331), we get a palindrome (637282736).

The spelling of 133141405 in words is "one hundred thirty-three million, one hundred forty-one thousand, four hundred five".