134142330 has 64 divisors (see below), whose sum is σ = 369089280. Its totient is φ = 30564864.

The previous prime is 134142259. The next prime is 134142331. The reversal of 134142330 is 33241431.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 134142297 and 134142306.

It is not an unprimeable number, because it can be changed into a prime (134142331) 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, 82566 + ... + 84174.

It is an arithmetic number, because the mean of its divisors is an integer number (5767020).

Almost surely, 2^134142330 is an apocalyptic number.

134142330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 134142330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184544640).

134142330 is an abundant number, since it is smaller than the sum of its proper divisors (234946950).

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

134142330 is a wasteful number, since it uses less digits than its factorization.

134142330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 134142330 is about 11581.9829908354. The cubic root of 134142330 is about 511.9041085270.

Adding to 134142330 its reverse (33241431), we get a palindrome (167383761).

The spelling of 134142330 in words is "one hundred thirty-four million, one hundred forty-two thousand, three hundred thirty".