136216541 has 2 divisors, whose sum is σ = 136216542. Its totient is φ = 136216540.

The previous prime is 136216523. The next prime is 136216543. The reversal of 136216541 is 145612631.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129299641 + 6916900 = 11371^2 + 2630^2 .

It is a cyclic number.

It is not a de Polignac number, because 136216541 - 2¹⁰ = 136215517 is a prime.

Together with 136216543, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136216543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68108270 + 68108271.

It is an arithmetic number, because the mean of its divisors is an integer number (68108271).

Almost surely, 2^136216541 is an apocalyptic number.

It is an amenable number.

136216541 is a deficient number, since it is larger than the sum of its proper divisors (1).

136216541 is an equidigital number, since it uses as much as digits as its factorization.

136216541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 29.

The square root of 136216541 is about 11671.1842158369. The cubic root of 136216541 is about 514.5291086413.

The spelling of 136216541 in words is "one hundred thirty-six million, two hundred sixteen thousand, five hundred forty-one".