136243444 has 12 divisors (see below), whose sum is σ = 248792544. Its totient is φ = 65159864.

The previous prime is 136243417. The next prime is 136243447. The reversal of 136243444 is 444342631.

136243444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×136243444² = 37124552065962272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136243447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 740362 + ... + 740545.

It is an arithmetic number, because the mean of its divisors is an integer number (20732712).

Almost surely, 2^136243444 is an apocalyptic number.

It is an amenable number.

136243444 is a deficient number, since it is larger than the sum of its proper divisors (112549100).

136243444 is a wasteful number, since it uses less digits than its factorization.

136243444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480934 (or 1480932 counting only the distinct ones).

The product of its digits is 27648, while the sum is 31.

The square root of 136243444 is about 11672.3366983651. The cubic root of 136243444 is about 514.5629798714.

The spelling of 136243444 in words is "one hundred thirty-six million, two hundred forty-three thousand, four hundred forty-four".