134213442 has 48 divisors (see below), whose sum is σ = 296728320. Its totient is φ = 40439520.

The previous prime is 134213423. The next prime is 134213447. The reversal of 134213442 is 244312431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134213447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 161484 + ... + 162312.

It is an arithmetic number, because the mean of its divisors is an integer number (6181840).

Almost surely, 2^134213442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134213442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148364160).

134213442 is an abundant number, since it is smaller than the sum of its proper divisors (162514878).

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

134213442 is a wasteful number, since it uses less digits than its factorization.

134213442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079 (or 1068 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 134213442 is about 11585.0525246975. The cubic root of 134213442 is about 511.9945500112.

Adding to 134213442 its reverse (244312431), we get a palindrome (378525873).

The spelling of 134213442 in words is "one hundred thirty-four million, two hundred thirteen thousand, four hundred forty-two".