134870887 has 4 divisors (see below), whose sum is σ = 135081936. Its totient is φ = 134659840.

The previous prime is 134870831. The next prime is 134870893. The reversal of 134870887 is 788078431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134870887 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 (134871887) 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, 104563 + ... + 105844.

It is an arithmetic number, because the mean of its divisors is an integer number (33770484).

Almost surely, 2^134870887 is an apocalyptic number.

134870887 is a deficient number, since it is larger than the sum of its proper divisors (211049).

134870887 is an equidigital number, since it uses as much as digits as its factorization.

134870887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211048.

The product of its (nonzero) digits is 301056, while the sum is 46.

The square root of 134870887 is about 11613.3925706488. The cubic root of 134870887 is about 512.8291910060.

The spelling of 134870887 in words is "one hundred thirty-four million, eight hundred seventy thousand, eight hundred eighty-seven".