134243240 has 16 divisors (see below), whose sum is σ = 302047380. Its totient is φ = 53697280.

The previous prime is 134243177. The next prime is 134243243. The reversal of 134243240 is 42342431.

It can be written as a sum of positive squares in 2 ways, for example, as 128550244 + 5692996 = 11338^2 + 2386^2 .

It is not an unprimeable number, because it can be changed into a prime (134243243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1678001 + ... + 1678080.

Almost surely, 2^134243240 is an apocalyptic number.

134243240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134243240 is an abundant number, since it is smaller than the sum of its proper divisors (167804140).

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

134243240 is a wasteful number, since it uses less digits than its factorization.

134243240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3356092 (or 3356088 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 134243240 is about 11586.3385070522. The cubic root of 134243240 is about 512.0324381304.

Adding to 134243240 its reverse (42342431), we get a palindrome (176585671).

The spelling of 134243240 in words is "one hundred thirty-four million, two hundred forty-three thousand, two hundred forty".