133454642 has 4 divisors (see below), whose sum is σ = 200181966. Its totient is φ = 66727320.

The previous prime is 133454639. The next prime is 133454647. The reversal of 133454642 is 246454331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 126585001 + 6869641 = 11251^2 + 2621^2 .

It is a junction number, because it is equal to n+sod(n) for n = 133454599 and 133454608.

It is not an unprimeable number, because it can be changed into a prime (133454647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33363659 + ... + 33363662.

Almost surely, 2^133454642 is an apocalyptic number.

133454642 is a deficient number, since it is larger than the sum of its proper divisors (66727324).

133454642 is an equidigital number, since it uses as much as digits as its factorization.

133454642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66727323.

The product of its digits is 34560, while the sum is 32.

The square root of 133454642 is about 11552.2570089139. The cubic root of 133454642 is about 511.0278412584.

The spelling of 133454642 in words is "one hundred thirty-three million, four hundred fifty-four thousand, six hundred forty-two".