133241553 has 24 divisors (see below), whose sum is σ = 201419712. Its totient is φ = 84715488.

The previous prime is 133241543. The next prime is 133241557. The reversal of 133241553 is 355142331.

It is not a de Polignac number, because 133241553 - 2¹² = 133237457 is a prime.

It is a super-2 number, since 2×133241553² = 35506622891703618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133241557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90975 + ... + 92427.

It is an arithmetic number, because the mean of its divisors is an integer number (8392488).

Almost surely, 2^133241553 is an apocalyptic number.

It is an amenable number.

133241553 is a deficient number, since it is larger than the sum of its proper divisors (68178159).

133241553 is a wasteful number, since it uses less digits than its factorization.

133241553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1925 (or 1922 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 133241553 is about 11543.0304946318. The cubic root of 133241553 is about 510.7557077972.

Adding to 133241553 its reverse (355142331), we get a palindrome (488383884).

The spelling of 133241553 in words is "one hundred thirty-three million, two hundred forty-one thousand, five hundred fifty-three".