134651780 has 12 divisors (see below), whose sum is σ = 282768780. Its totient is φ = 53860704.

The previous prime is 134651767. The next prime is 134651789. The reversal of 134651780 is 87156431.

It can be written as a sum of positive squares in 2 ways, for example, as 87647044 + 47004736 = 9362^2 + 6856^2 .

It is a super-2 number, since 2×134651780² = 36262203714336800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 134651780.

It is not an unprimeable number, because it can be changed into a prime (134651789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3366275 + ... + 3366314.

It is an arithmetic number, because the mean of its divisors is an integer number (23564065).

Almost surely, 2^134651780 is an apocalyptic number.

134651780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134651780 is an abundant number, since it is smaller than the sum of its proper divisors (148117000).

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

134651780 is a wasteful number, since it uses less digits than its factorization.

134651780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6732598 (or 6732596 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 134651780 is about 11603.9553601348. The cubic root of 134651780 is about 512.5513317611.

The spelling of 134651780 in words is "one hundred thirty-four million, six hundred fifty-one thousand, seven hundred eighty".