136885641 has 8 divisors (see below), whose sum is σ = 186758880. Its totient is φ = 89134752.

The previous prime is 136885621. The next prime is 136885663. The reversal of 136885641 is 146588631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 136885641 - 2¹⁰ = 136884617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 136885593 and 136885602.

It is not an unprimeable number, because it can be changed into a prime (136885621) 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 in 7 ways as a sum of consecutive naturals, for example, 530436 + ... + 530693.

It is an arithmetic number, because the mean of its divisors is an integer number (23344860).

Almost surely, 2^136885641 is an apocalyptic number.

It is an amenable number.

136885641 is a deficient number, since it is larger than the sum of its proper divisors (49873239).

136885641 is a wasteful number, since it uses less digits than its factorization.

136885641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061175.

The product of its digits is 138240, while the sum is 42.

The square root of 136885641 is about 11699.8137164657. The cubic root of 136885641 is about 515.3701941330.

The spelling of 136885641 in words is "one hundred thirty-six million, eight hundred eighty-five thousand, six hundred forty-one".