133753442 has 8 divisors (see below), whose sum is σ = 200906076. Its totient is φ = 66784752.

The previous prime is 133753429. The next prime is 133753463. The reversal of 133753442 is 244357331.

It can be written as a sum of positive squares in 2 ways, for example, as 133656721 + 96721 = 11561^2 + 311^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 133753399 and 133753408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44153 + ... + 47084.

Almost surely, 2^133753442 is an apocalyptic number.

133753442 is a deficient number, since it is larger than the sum of its proper divisors (67152634).

133753442 is an equidigital number, since it uses as much as digits as its factorization.

133753442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91972.

The product of its digits is 30240, while the sum is 32.

The square root of 133753442 is about 11565.1823158997. The cubic root of 133753442 is about 511.4089477743.

The spelling of 133753442 in words is "one hundred thirty-three million, seven hundred fifty-three thousand, four hundred forty-two".