133241145 has 16 divisors (see below), whose sum is σ = 215756352. Its totient is φ = 70205120.

The previous prime is 133241113. The next prime is 133241149. The reversal of 133241145 is 541142331.

It is a happy number.

It is not a de Polignac number, because 133241145 - 2⁵ = 133241113 is a prime.

It is a super-2 number, since 2×133241145² = 35506405441822050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133241149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52266 + ... + 54755.

It is an arithmetic number, because the mean of its divisors is an integer number (13484772).

Almost surely, 2^133241145 is an apocalyptic number.

133241145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133241145 is a deficient number, since it is larger than the sum of its proper divisors (82515207).

133241145 is a wasteful number, since it uses less digits than its factorization.

133241145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107112.

The product of its digits is 1440, while the sum is 24.

The square root of 133241145 is about 11543.0128216164. The cubic root of 133241145 is about 510.7551864670.

Adding to 133241145 its reverse (541142331), we get a palindrome (674383476).

It can be divided in two parts, 133241 and 145, that added together give a triangular number (133386 = T₅₁₆).

The spelling of 133241145 in words is "one hundred thirty-three million, two hundred forty-one thousand, one hundred forty-five".