136215419 has 2 divisors, whose sum is σ = 136215420. Its totient is φ = 136215418.

The previous prime is 136215377. The next prime is 136215449. The reversal of 136215419 is 914512631.

It is a strong prime.

It is an emirp because it is prime and its reverse (914512631) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136215419 is a prime.

It is a super-2 number, since 2×136215419² = 37109280746691122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (136215449) 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 as a sum of consecutive naturals, namely, 68107709 + 68107710.

It is an arithmetic number, because the mean of its divisors is an integer number (68107710).

Almost surely, 2^136215419 is an apocalyptic number.

136215419 is a deficient number, since it is larger than the sum of its proper divisors (1).

136215419 is an equidigital number, since it uses as much as digits as its factorization.

136215419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 32.

The square root of 136215419 is about 11671.1361486361. The cubic root of 136215419 is about 514.5276959317.

The spelling of 136215419 in words is "one hundred thirty-six million, two hundred fifteen thousand, four hundred nineteen".