134747280 has 80 divisors (see below), whose sum is σ = 464136960. Its totient is φ = 35932032.

The previous prime is 134747273. The next prime is 134747293. The reversal of 134747280 is 82747431.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29032 + ... + 33351.

It is an arithmetic number, because the mean of its divisors is an integer number (5801712).

Almost surely, 2^134747280 is an apocalyptic number.

134747280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134747280 is an abundant number, since it is smaller than the sum of its proper divisors (329389680).

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

134747280 is a wasteful number, since it uses less digits than its factorization.

134747280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62405 (or 62393 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 134747280 is about 11608.0696069588. The cubic root of 134747280 is about 512.6724765507.

The spelling of 134747280 in words is "one hundred thirty-four million, seven hundred forty-seven thousand, two hundred eighty".