134720877 has 4 divisors (see below), whose sum is σ = 179627840. Its totient is φ = 89813916.

The previous prime is 134720857. The next prime is 134720891. The reversal of 134720877 is 778027431.

134720877 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 778027431 = 3 ⋅259342477.

It is not a de Polignac number, because 134720877 - 2⁷ = 134720749 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 (134720827) 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, 22453477 + ... + 22453482.

It is an arithmetic number, because the mean of its divisors is an integer number (44906960).

Almost surely, 2^134720877 is an apocalyptic number.

It is an amenable number.

134720877 is a deficient number, since it is larger than the sum of its proper divisors (44906963).

134720877 is an equidigital number, since it uses as much as digits as its factorization.

134720877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44906962.

The product of its (nonzero) digits is 65856, while the sum is 39.

The square root of 134720877 is about 11606.9322820459. The cubic root of 134720877 is about 512.6389892313.

The spelling of 134720877 in words is "one hundred thirty-four million, seven hundred twenty thousand, eight hundred seventy-seven".