136447436 has 24 divisors (see below), whose sum is σ = 260022000. Its totient is φ = 62403264.

The previous prime is 136447433. The next prime is 136447447. The reversal of 136447436 is 634744631.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 136447436.

It is not an unprimeable number, because it can be changed into a prime (136447433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28751 + ... + 33158.

It is an arithmetic number, because the mean of its divisors is an integer number (10834250).

Almost surely, 2^136447436 is an apocalyptic number.

It is an amenable number.

136447436 is a deficient number, since it is larger than the sum of its proper divisors (123574564).

136447436 is a wasteful number, since it uses less digits than its factorization.

136447436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61961 (or 61959 counting only the distinct ones).

The product of its digits is 145152, while the sum is 38.

The square root of 136447436 is about 11681.0716974086. The cubic root of 136447436 is about 514.8196635065.

The spelling of 136447436 in words is "one hundred thirty-six million, four hundred forty-seven thousand, four hundred thirty-six".