134138785 has 12 divisors (see below), whose sum is σ = 176930964. Its totient is φ = 97555040.

The previous prime is 134138747. The next prime is 134138861. The reversal of 134138785 is 587831431.

It can be written as a sum of positive squares in 2 ways, for example, as 66438801 + 67699984 = 8151^2 + 8228^2 .

It is not a de Polignac number, because 134138785 - 2⁷ = 134138657 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110254 + ... + 111463.

It is an arithmetic number, because the mean of its divisors is an integer number (14744247).

Almost surely, 2^134138785 is an apocalyptic number.

It is an amenable number.

134138785 is a deficient number, since it is larger than the sum of its proper divisors (42792179).

134138785 is a wasteful number, since it uses less digits than its factorization.

134138785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221744 (or 221733 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 134138785 is about 11581.8299504008. The cubic root of 134138785 is about 511.8995990977.

The spelling of 134138785 in words is "one hundred thirty-four million, one hundred thirty-eight thousand, seven hundred eighty-five".