136263647 has 4 divisors (see below), whose sum is σ = 146745480. Its totient is φ = 125781816.

The previous prime is 136263643. The next prime is 136263679. The reversal of 136263647 is 746362631.

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 136263647 - 2² = 136263643 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 136263647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136263641) 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, 5240897 + ... + 5240922.

It is an arithmetic number, because the mean of its divisors is an integer number (36686370).

Almost surely, 2^136263647 is an apocalyptic number.

136263647 is a deficient number, since it is larger than the sum of its proper divisors (10481833).

136263647 is a wasteful number, since it uses less digits than its factorization.

136263647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10481832.

The product of its digits is 108864, while the sum is 38.

The square root of 136263647 is about 11673.2020885445. The cubic root of 136263647 is about 514.5884127822.

The spelling of 136263647 in words is "one hundred thirty-six million, two hundred sixty-three thousand, six hundred forty-seven".