134780101 has 4 divisors (see below), whose sum is σ = 135002752. Its totient is φ = 134557452.

The previous prime is 134780077. The next prime is 134780123. The reversal of 134780101 is 101087431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 134780101 - 2¹¹ = 134778053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134780141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110415 + ... + 111628.

It is an arithmetic number, because the mean of its divisors is an integer number (33750688).

Almost surely, 2^134780101 is an apocalyptic number.

It is an amenable number.

134780101 is a deficient number, since it is larger than the sum of its proper divisors (222651).

134780101 is an equidigital number, since it uses as much as digits as its factorization.

134780101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222650.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 134780101 is about 11609.4832357000. The cubic root of 134780101 is about 512.7140978173.

The spelling of 134780101 in words is "one hundred thirty-four million, seven hundred eighty thousand, one hundred one".