136885571 has 2 divisors, whose sum is σ = 136885572. Its totient is φ = 136885570.

The previous prime is 136885559. The next prime is 136885613. The reversal of 136885571 is 175588631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136885571 - 2¹⁰ = 136884547 is a prime.

It is not a weakly prime, because it can be changed into another prime (136885501) 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 as a sum of consecutive naturals, namely, 68442785 + 68442786.

It is an arithmetic number, because the mean of its divisors is an integer number (68442786).

Almost surely, 2^136885571 is an apocalyptic number.

136885571 is a deficient number, since it is larger than the sum of its proper divisors (1).

136885571 is an equidigital number, since it uses as much as digits as its factorization.

136885571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 201600, while the sum is 44.

The square root of 136885571 is about 11699.8107249647. The cubic root of 136885571 is about 515.3701062837.

The spelling of 136885571 in words is "one hundred thirty-six million, eight hundred eighty-five thousand, five hundred seventy-one".