134679780 has 144 divisors (see below), whose sum is σ = 445616640. Its totient is φ = 33762816.

The previous prime is 134679773. The next prime is 134679791. The reversal of 134679780 is 87976431.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 155629 + ... + 156491.

It is an arithmetic number, because the mean of its divisors is an integer number (3094560).

Almost surely, 2^134679780 is an apocalyptic number.

134679780 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 134679780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222808320).

134679780 is an abundant number, since it is smaller than the sum of its proper divisors (310936860).

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

134679780 is a wasteful number, since it uses less digits than its factorization.

134679780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915 (or 890 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 134679780 is about 11605.1617825862. The cubic root of 134679780 is about 512.5868565858.

The spelling of 134679780 in words is "one hundred thirty-four million, six hundred seventy-nine thousand, seven hundred eighty".