133141523 has 8 divisors (see below), whose sum is σ = 137862480. Its totient is φ = 128429280.

The previous prime is 133141517. The next prime is 133141643. The reversal of 133141523 is 325141331.

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 133141523 - 2⁴ = 133141507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133141423) 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, 52736 + ... + 55202.

It is an arithmetic number, because the mean of its divisors is an integer number (17232810).

Almost surely, 2^133141523 is an apocalyptic number.

133141523 is a deficient number, since it is larger than the sum of its proper divisors (4720957).

133141523 is a wasteful number, since it uses less digits than its factorization.

133141523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4357.

The product of its digits is 1080, while the sum is 23.

The square root of 133141523 is about 11538.6967634998. The cubic root of 133141523 is about 510.6278605829.

Adding to 133141523 its reverse (325141331), we get a palindrome (458282854).

The spelling of 133141523 in words is "one hundred thirty-three million, one hundred forty-one thousand, five hundred twenty-three".