134685971 has 4 divisors (see below), whose sum is σ = 153926832. Its totient is φ = 115445112.

The previous prime is 134685961. The next prime is 134685977. The reversal of 134685971 is 179586431.

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

It is a cyclic number.

It is not a de Polignac number, because 134685971 - 2¹⁸ = 134423827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134685977) 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, 9620420 + ... + 9620433.

It is an arithmetic number, because the mean of its divisors is an integer number (38481708).

Almost surely, 2^134685971 is an apocalyptic number.

134685971 is a deficient number, since it is larger than the sum of its proper divisors (19240861).

134685971 is an equidigital number, since it uses as much as digits as its factorization.

134685971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19240860.

The product of its digits is 181440, while the sum is 44.

The square root of 134685971 is about 11605.4285142773. The cubic root of 134685971 is about 512.5947107136.

The spelling of 134685971 in words is "one hundred thirty-four million, six hundred eighty-five thousand, nine hundred seventy-one".