136834919 has 16 divisors (see below), whose sum is σ = 149960160. Its totient is φ = 124101120.

The previous prime is 136834913. The next prime is 136834931. The reversal of 136834919 is 919438631.

It is not a de Polignac number, because 136834919 - 2¹² = 136830823 is a prime.

It is a super-2 number, since 2×136834919² = 37447590115473122, 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 136834919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136834913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262379 + ... + 262899.

It is an arithmetic number, because the mean of its divisors is an integer number (9372510).

Almost surely, 2^136834919 is an apocalyptic number.

136834919 is a deficient number, since it is larger than the sum of its proper divisors (13125241).

136834919 is a wasteful number, since it uses less digits than its factorization.

136834919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850.

The product of its digits is 139968, while the sum is 44.

The square root of 136834919 is about 11697.6458742774. The cubic root of 136834919 is about 515.3065306832.

The spelling of 136834919 in words is "one hundred thirty-six million, eight hundred thirty-four thousand, nine hundred nineteen".