136447742 has 8 divisors (see below), whose sum is σ = 204780000. Its totient is φ = 68187744.

The previous prime is 136447741. The next prime is 136447777. The reversal of 136447742 is 247744631.

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

It is a junction number, because it is equal to n+sod(n) for n = 136447696 and 136447705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136447741) 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, 13067 + ... + 21062.

It is an arithmetic number, because the mean of its divisors is an integer number (25597500).

Almost surely, 2^136447742 is an apocalyptic number.

136447742 is a deficient number, since it is larger than the sum of its proper divisors (68332258).

136447742 is a wasteful number, since it uses less digits than its factorization.

136447742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36130.

The product of its digits is 112896, while the sum is 38.

The square root of 136447742 is about 11681.0847955145. The cubic root of 136447742 is about 514.8200483548.

The spelling of 136447742 in words is "one hundred thirty-six million, four hundred forty-seven thousand, seven hundred forty-two".