136863541 has 2 divisors, whose sum is σ = 136863542. Its totient is φ = 136863540.

The previous prime is 136863527. The next prime is 136863563. The reversal of 136863541 is 145368631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116424100 + 20439441 = 10790^2 + 4521^2 .

It is a cyclic number.

It is not a de Polignac number, because 136863541 - 2⁵ = 136863509 is a prime.

It is a super-3 number, since 3×136863541³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 136863541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136863341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68431770 + 68431771.

It is an arithmetic number, because the mean of its divisors is an integer number (68431771).

Almost surely, 2^136863541 is an apocalyptic number.

It is an amenable number.

136863541 is a deficient number, since it is larger than the sum of its proper divisors (1).

136863541 is an equidigital number, since it uses as much as digits as its factorization.

136863541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 37.

The square root of 136863541 is about 11698.8692188604. The cubic root of 136863541 is about 515.3424573686.

The spelling of 136863541 in words is "one hundred thirty-six million, eight hundred sixty-three thousand, five hundred forty-one".