133722342 has 72 divisors (see below), whose sum is σ = 329513184. Its totient is φ = 38955168.

The previous prime is 133722331. The next prime is 133722343. The reversal of 133722342 is 243227331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133722343) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 83683 + ... + 85265.

It is an arithmetic number, because the mean of its divisors is an integer number (4576572).

Almost surely, 2^133722342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133722342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164756592).

133722342 is an abundant number, since it is smaller than the sum of its proper divisors (195790842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133722342 is a wasteful number, since it uses less digits than its factorization.

133722342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642 (or 1620 counting only the distinct ones).

The product of its digits is 6048, while the sum is 27.

The square root of 133722342 is about 11563.8376847827. The cubic root of 133722342 is about 511.3693075455.

Adding to 133722342 its reverse (243227331), we get a palindrome (376949673).

The spelling of 133722342 in words is "one hundred thirty-three million, seven hundred twenty-two thousand, three hundred forty-two".