136747547 has 4 divisors (see below), whose sum is σ = 136771056. Its totient is φ = 136724040.

The previous prime is 136747537. The next prime is 136747553. The reversal of 136747547 is 745747631.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 745747631 = 61 ⋅12225371.

It is a cyclic number.

It is not a de Polignac number, because 136747547 - 2²² = 132553243 is a prime.

It is a super-2 number, since 2×136747547² = 37399783221034418, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136747498 and 136747507.

It is not an unprimeable number, because it can be changed into a prime (136747517) 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, 4097 + ... + 17037.

It is an arithmetic number, because the mean of its divisors is an integer number (34192764).

Almost surely, 2^136747547 is an apocalyptic number.

136747547 is a deficient number, since it is larger than the sum of its proper divisors (23509).

136747547 is a wasteful number, since it uses less digits than its factorization.

136747547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23508.

The product of its digits is 493920, while the sum is 44.

The square root of 136747547 is about 11693.9106803498. The cubic root of 136747547 is about 515.1968292787.

The spelling of 136747547 in words is "one hundred thirty-six million, seven hundred forty-seven thousand, five hundred forty-seven".