133953441 has 4 divisors (see below), whose sum is σ = 178604592. Its totient is φ = 89302292.

The previous prime is 133953433. The next prime is 133953461. The reversal of 133953441 is 144359331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 133953441 - 2³ = 133953433 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (133953461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22325571 + ... + 22325576.

It is an arithmetic number, because the mean of its divisors is an integer number (44651148).

Almost surely, 2^133953441 is an apocalyptic number.

It is an amenable number.

133953441 is a deficient number, since it is larger than the sum of its proper divisors (44651151).

133953441 is an equidigital number, since it uses as much as digits as its factorization.

133953441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44651150.

The product of its digits is 19440, while the sum is 33.

The square root of 133953441 is about 11573.8256855717. The cubic root of 133953441 is about 511.6637208831.

It can be divided in two parts, 13395 and 3441, that added together give a triangular number (16836 = T₁₈₃).

The spelling of 133953441 in words is "one hundred thirty-three million, nine hundred fifty-three thousand, four hundred forty-one".