136673471 has 4 divisors (see below), whose sum is σ = 149098344. Its totient is φ = 124248600.

The previous prime is 136673443. The next prime is 136673477. The reversal of 136673471 is 174376631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136673471 is a prime.

It is a super-3 number, since 3×136673471³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136673477) 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, 6212420 + ... + 6212441.

It is an arithmetic number, because the mean of its divisors is an integer number (37274586).

Almost surely, 2^136673471 is an apocalyptic number.

136673471 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

136673471 is a deficient number, since it is larger than the sum of its proper divisors (12424873).

136673471 is a wasteful number, since it uses less digits than its factorization.

136673471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12424872.

The product of its digits is 63504, while the sum is 38.

The square root of 136673471 is about 11690.7429618481. The cubic root of 136673471 is about 515.1037852856.

The spelling of 136673471 in words is "one hundred thirty-six million, six hundred seventy-three thousand, four hundred seventy-one".