134243380 has 24 divisors (see below), whose sum is σ = 282130632. Its totient is φ = 53655552.

The previous prime is 134243359. The next prime is 134243381. The reversal of 134243380 is 83342431.

It can be written as a sum of positive squares in 4 ways, for example, as 57820816 + 76422564 = 7604^2 + 8742^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134243381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43984 + ... + 46936.

It is an arithmetic number, because the mean of its divisors is an integer number (11755443).

Almost surely, 2^134243380 is an apocalyptic number.

134243380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134243380 is an abundant number, since it is smaller than the sum of its proper divisors (147887252).

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

134243380 is a wasteful number, since it uses less digits than its factorization.

134243380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5235 (or 5233 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 134243380 is about 11586.3445486486. The cubic root of 134243380 is about 512.0326161270.

The spelling of 134243380 in words is "one hundred thirty-four million, two hundred forty-three thousand, three hundred eighty".