134747220 has 24 divisors (see below), whose sum is σ = 377292384. Its totient is φ = 35932576.

The previous prime is 134747201. The next prime is 134747227. The reversal of 134747220 is 22747431.

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 (134747227) 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, 1122834 + ... + 1122953.

It is an arithmetic number, because the mean of its divisors is an integer number (15720516).

Almost surely, 2^134747220 is an apocalyptic number.

134747220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134747220 is an abundant number, since it is smaller than the sum of its proper divisors (242545164).

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

134747220 is a wasteful number, since it uses less digits than its factorization.

134747220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2245799 (or 2245797 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 134747220 is about 11608.0670225494. The cubic root of 134747220 is about 512.6724004568.

The spelling of 134747220 in words is "one hundred thirty-four million, seven hundred forty-seven thousand, two hundred twenty".