134685719 has 16 divisors (see below), whose sum is σ = 155865600. Its totient is φ = 114001440.

The previous prime is 134685709. The next prime is 134685833. The reversal of 134685719 is 917586431.

It is not a de Polignac number, because 134685719 - 2¹⁶ = 134620183 is a prime.

It is a super-2 number, since 2×134685719² = 36280485805093922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 134685719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134685709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274064 + ... + 274554.

It is an arithmetic number, because the mean of its divisors is an integer number (9741600).

Almost surely, 2^134685719 is an apocalyptic number.

134685719 is a deficient number, since it is larger than the sum of its proper divisors (21179881).

134685719 is a wasteful number, since it uses less digits than its factorization.

134685719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910.

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

The square root of 134685719 is about 11605.4176572840. The cubic root of 134685719 is about 512.5943910219.

The spelling of 134685719 in words is "one hundred thirty-four million, six hundred eighty-five thousand, seven hundred nineteen".