134721750 has 64 divisors (see below), whose sum is σ = 338038272. Its totient is φ = 35736800.

The previous prime is 134721749. The next prime is 134721757. The reversal of 134721750 is 57127431.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134721757) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 196909 + ... + 197591.

It is an arithmetic number, because the mean of its divisors is an integer number (5281848).

Almost surely, 2^134721750 is an apocalyptic number.

134721750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 134721750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169019136).

134721750 is an abundant number, since it is smaller than the sum of its proper divisors (203316522).

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

134721750 is a wasteful number, since it uses less digits than its factorization.

134721750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966 (or 956 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 134721750 is about 11606.9698888211. The cubic root of 134721750 is about 512.6400965402.

The spelling of 134721750 in words is "one hundred thirty-four million, seven hundred twenty-one thousand, seven hundred fifty".