134671240 has 128 divisors (see below), whose sum is σ = 353808000. Its totient is φ = 45619200.

The previous prime is 134671237. The next prime is 134671241. The reversal of 134671240 is 42176431.

It is a junction number, because it is equal to n+sod(n) for n = 134671199 and 134671208.

It is not an unprimeable number, because it can be changed into a prime (134671241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 743950 + ... + 744130.

It is an arithmetic number, because the mean of its divisors is an integer number (2764125).

Almost surely, 2^134671240 is an apocalyptic number.

134671240 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 134671240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176904000).

134671240 is an abundant number, since it is smaller than the sum of its proper divisors (219136760).

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

134671240 is a wasteful number, since it uses less digits than its factorization.

134671240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 134671240 is about 11604.7938370313. The cubic root of 134671240 is about 512.5760220362.

The spelling of 134671240 in words is "one hundred thirty-four million, six hundred seventy-one thousand, two hundred forty".