133443723 has 32 divisors (see below), whose sum is σ = 213543936. Its totient is φ = 72471168.

The previous prime is 133443701. The next prime is 133443731. The reversal of 133443723 is 327344331.

It is not a de Polignac number, because 133443723 - 2⁵ = 133443691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133443733) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82761 + ... + 84357.

It is an arithmetic number, because the mean of its divisors is an integer number (6673248).

Almost surely, 2^133443723 is an apocalyptic number.

133443723 is a deficient number, since it is larger than the sum of its proper divisors (80100213).

133443723 is a wasteful number, since it uses less digits than its factorization.

133443723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1803.

The product of its digits is 18144, while the sum is 30.

The square root of 133443723 is about 11551.7844076143. The cubic root of 133443723 is about 511.0139037760.

The spelling of 133443723 in words is "one hundred thirty-three million, four hundred forty-three thousand, seven hundred twenty-three".