133323442 has 8 divisors (see below), whose sum is σ = 228554496. Its totient is φ = 57138612.

The previous prime is 133323439. The next prime is 133323557. The reversal of 133323442 is 244323331.

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

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, 4761538 + ... + 4761565.

It is an arithmetic number, because the mean of its divisors is an integer number (28569312).

Almost surely, 2^133323442 is an apocalyptic number.

133323442 is a deficient number, since it is larger than the sum of its proper divisors (95231054).

133323442 is an equidigital number, since it uses as much as digits as its factorization.

133323442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9523112.

The product of its digits is 5184, while the sum is 25.

The square root of 133323442 is about 11546.5770685515. The cubic root of 133323442 is about 510.8603215799.

Adding to 133323442 its reverse (244323331), we get a palindrome (377646773).

The spelling of 133323442 in words is "one hundred thirty-three million, three hundred twenty-three thousand, four hundred forty-two".