136445444 has 12 divisors (see below), whose sum is σ = 239125068. Its totient is φ = 68124000.

The previous prime is 136445431. The next prime is 136445447. The reversal of 136445444 is 444544631.

It can be written as a sum of positive squares in 2 ways, for example, as 81685444 + 54760000 = 9038^2 + 7400^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (136445447) 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 3 ways as a sum of consecutive naturals, for example, 21527 + ... + 27134.

It is an arithmetic number, because the mean of its divisors is an integer number (19927089).

Almost surely, 2^136445444 is an apocalyptic number.

It is an amenable number.

136445444 is a deficient number, since it is larger than the sum of its proper divisors (102679624).

136445444 is a wasteful number, since it uses less digits than its factorization.

136445444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49366 (or 49364 counting only the distinct ones).

The product of its digits is 92160, while the sum is 35.

The square root of 136445444 is about 11680.9864309484. The cubic root of 136445444 is about 514.8171582053.

The spelling of 136445444 in words is "one hundred thirty-six million, four hundred forty-five thousand, four hundred forty-four".