134421042 has 64 divisors (see below), whose sum is σ = 317011968. Its totient is φ = 37200000.

The previous prime is 134421041. The next prime is 134421059. The reversal of 134421042 is 240124431.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (134421041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 432067 + ... + 432377.

It is an arithmetic number, because the mean of its divisors is an integer number (4953312).

Almost surely, 2^134421042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134421042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158505984).

134421042 is an abundant number, since it is smaller than the sum of its proper divisors (182590926).

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

134421042 is a wasteful number, since it uses less digits than its factorization.

134421042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 134421042 is about 11594.0088839021. The cubic root of 134421042 is about 512.2583966901.

Adding to 134421042 its reverse (240124431), we get a palindrome (374545473).

The spelling of 134421042 in words is "one hundred thirty-four million, four hundred twenty-one thousand, forty-two".