134021100 has 72 divisors (see below), whose sum is σ = 395130960. Its totient is φ = 35060480.

The previous prime is 134021099. The next prime is 134021101. The reversal of 134021100 is 1120431.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (134021099) and next prime (134021101).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (134021101) 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, 11686 + ... + 20114.

It is an arithmetic number, because the mean of its divisors is an integer number (5487930).

Almost surely, 2^134021100 is an apocalyptic number.

134021100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134021100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197565480).

134021100 is an abundant number, since it is smaller than the sum of its proper divisors (261109860).

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

134021100 is a wasteful number, since it uses less digits than its factorization.

134021100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8499 (or 8492 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 134021100 is about 11576.7482481049. The cubic root of 134021100 is about 511.7498523741.

Adding to 134021100 its reverse (1120431), we get a palindrome (135141531).

The spelling of 134021100 in words is "one hundred thirty-four million, twenty-one thousand, one hundred".