136463823 has 6 divisors (see below), whose sum is σ = 197114424. Its totient is φ = 90975876.

The previous prime is 136463819. The next prime is 136463849. The reversal of 136463823 is 328364631.

136463823 is a `hidden beast` number, since 1 + 3 + 646 + 3 + 8 + 2 + 3 = 666.

It is not a de Polignac number, because 136463823 - 2² = 136463819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136463813) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7581315 + ... + 7581332.

It is an arithmetic number, because the mean of its divisors is an integer number (32852404).

Almost surely, 2^136463823 is an apocalyptic number.

136463823 is a deficient number, since it is larger than the sum of its proper divisors (60650601).

136463823 is a wasteful number, since it uses less digits than its factorization.

136463823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15162653 (or 15162650 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 136463823 is about 11681.7731102774. The cubic root of 136463823 is about 514.8402722048.

The spelling of 136463823 in words is "one hundred thirty-six million, four hundred sixty-three thousand, eight hundred twenty-three".