133422143 has 4 divisors (see below), whose sum is σ = 136260960. Its totient is φ = 130583328.

The previous prime is 133422139. The next prime is 133422167. The reversal of 133422143 is 341224331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341224331 = 7 ⋅48746333.

It is a cyclic number.

It is not a de Polignac number, because 133422143 - 2² = 133422139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133422193) 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, 1419338 + ... + 1419431.

It is an arithmetic number, because the mean of its divisors is an integer number (34065240).

Almost surely, 2^133422143 is an apocalyptic number.

133422143 is a deficient number, since it is larger than the sum of its proper divisors (2838817).

133422143 is an equidigital number, since it uses as much as digits as its factorization.

133422143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2838816.

The product of its digits is 1728, while the sum is 23.

The square root of 133422143 is about 11550.8503150201. The cubic root of 133422143 is about 510.9863558971.

Adding to 133422143 its reverse (341224331), we get a palindrome (474646474).

The spelling of 133422143 in words is "one hundred thirty-three million, four hundred twenty-two thousand, one hundred forty-three".