136960019 has 4 divisors (see below), whose sum is σ = 156525744. Its totient is φ = 117394296.

The previous prime is 136960001. The next prime is 136960073. The reversal of 136960019 is 910069631.

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-136960019 is a prime.

It is a super-2 number, since 2×136960019² = 37516093608960722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136960099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9782852 + ... + 9782865.

It is an arithmetic number, because the mean of its divisors is an integer number (39131436).

Almost surely, 2^136960019 is an apocalyptic number.

136960019 is a deficient number, since it is larger than the sum of its proper divisors (19565725).

136960019 is an equidigital number, since it uses as much as digits as its factorization.

136960019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19565724.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 136960019 is about 11702.9918824205. The cubic root of 136960019 is about 515.4635208530.

The spelling of 136960019 in words is "one hundred thirty-six million, nine hundred sixty thousand, nineteen".