134123580 has 96 divisors (see below), whose sum is σ = 435456000. Its totient is φ = 34208064.

The previous prime is 134123551. The next prime is 134123581. The reversal of 134123580 is 85321431.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134123581) 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, 7021 + ... + 17819.

It is an arithmetic number, because the mean of its divisors is an integer number (4536000).

Almost surely, 2^134123580 is an apocalyptic number.

134123580 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 134123580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217728000).

134123580 is an abundant number, since it is smaller than the sum of its proper divisors (301332420).

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

134123580 is a wasteful number, since it uses less digits than its factorization.

134123580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10840 (or 10832 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 134123580 is about 11581.1735156676. The cubic root of 134123580 is about 511.8802566246.

The spelling of 134123580 in words is "one hundred thirty-four million, one hundred twenty-three thousand, five hundred eighty".