136612219 has 2 divisors, whose sum is σ = 136612220. Its totient is φ = 136612218.

The previous prime is 136612193. The next prime is 136612283. The reversal of 136612219 is 912216631.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136612219 is a prime.

It is a super-2 number, since 2×136612219² = 37325796760207922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (136610219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68306109 + 68306110.

It is an arithmetic number, because the mean of its divisors is an integer number (68306110).

Almost surely, 2^136612219 is an apocalyptic number.

136612219 is a deficient number, since it is larger than the sum of its proper divisors (1).

136612219 is an equidigital number, since it uses as much as digits as its factorization.

136612219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 31.

The square root of 136612219 is about 11688.1229887437. The cubic root of 136612219 is about 515.0268236257.

The spelling of 136612219 in words is "one hundred thirty-six million, six hundred twelve thousand, two hundred nineteen".