136019 has 4 divisors (see below), whose sum is σ = 146496. Its totient is φ = 125544.

The previous prime is 136013. The next prime is 136027. The reversal of 136019 is 910631.

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-136019 is a prime.

It is a super-2 number, since 2×136019² = 37002336722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136013) 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, 5219 + ... + 5244.

It is an arithmetic number, because the mean of its divisors is an integer number (36624).

2¹³⁶⁰¹⁹ is an apocalyptic number.

136019 is a deficient number, since it is larger than the sum of its proper divisors (10477).

136019 is a wasteful number, since it uses less digits than its factorization.

136019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10476.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 136019 is about 368.8075378839. The cubic root of 136019 is about 51.4280265227.

The spelling of 136019 in words is "one hundred thirty-six thousand, nineteen".