134123400 has 144 divisors (see below), whose sum is σ = 453737700. Its totient is φ = 35504640.

The previous prime is 134123399. The next prime is 134123449. The reversal of 134123400 is 4321431.

It can be written as a sum of positive squares in 6 ways, for example, as 5391684 + 128731716 = 2322^2 + 11346^2 .

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

It is a nialpdrome in base 15.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 484062 + ... + 484338.

Almost surely, 2^134123400 is an apocalyptic number.

134123400 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 134123400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226868850).

134123400 is an abundant number, since it is smaller than the sum of its proper divisors (319614300).

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

134123400 is a wasteful number, since it uses less digits than its factorization.

134123400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 134123400 is about 11581.1657444318. The cubic root of 134123400 is about 511.8800276356.

Adding to 134123400 its reverse (4321431), we get a palindrome (138444831).

The spelling of 134123400 in words is "one hundred thirty-four million, one hundred twenty-three thousand, four hundred".