136445011 has 4 divisors (see below), whose sum is σ = 140132752. Its totient is φ = 132757272.

The previous prime is 136444963. The next prime is 136445021. The reversal of 136445011 is 110544631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 136445011 - 2¹⁹ = 135920723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136445021) 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 in 3 ways as a sum of consecutive naturals, for example, 1843815 + ... + 1843888.

It is an arithmetic number, because the mean of its divisors is an integer number (35033188).

Almost surely, 2^136445011 is an apocalyptic number.

136445011 is a deficient number, since it is larger than the sum of its proper divisors (3687741).

136445011 is an equidigital number, since it uses as much as digits as its factorization.

136445011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3687740.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 136445011 is about 11680.9678965401. The cubic root of 136445011 is about 514.8166136261.

Adding to 136445011 its reverse (110544631), we get a palindrome (246989642).

The spelling of 136445011 in words is "one hundred thirty-six million, four hundred forty-five thousand, eleven".