134121330 has 144 divisors (see below), whose sum is σ = 429750360. Its totient is φ = 28836864.

The previous prime is 134121329. The next prime is 134121331. The reversal of 134121330 is 33121431.

It is an interprime number because it is at equal distance from previous prime (134121329) and next prime (134121331).

It can be written as a sum of positive squares in 4 ways, for example, as 133888041 + 233289 = 11571^2 + 483^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (134121331) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 74076 + ... + 75864.

Almost surely, 2^134121330 is an apocalyptic number.

134121330 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 134121330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214875180).

134121330 is an abundant number, since it is smaller than the sum of its proper divisors (295629030).

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

134121330 is a wasteful number, since it uses less digits than its factorization.

134121330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833 (or 1823 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 134121330 is about 11581.0763748453. The cubic root of 134121330 is about 511.8773942470.

Adding to 134121330 its reverse (33121431), we get a palindrome (167242761).

The spelling of 134121330 in words is "one hundred thirty-four million, one hundred twenty-one thousand, three hundred thirty".