136447711 has 4 divisors (see below), whose sum is σ = 138484312. Its totient is φ = 134411112.

The previous prime is 136447673. The next prime is 136447723. The reversal of 136447711 is 117744631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 117744631 = 307 ⋅383533.

It is not a de Polignac number, because 136447711 - 2²³ = 128059103 is a prime.

It is a Duffinian number.

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, 1018200 + ... + 1018333.

It is an arithmetic number, because the mean of its divisors is an integer number (34621078).

Almost surely, 2^136447711 is an apocalyptic number.

136447711 is a deficient number, since it is larger than the sum of its proper divisors (2036601).

136447711 is an equidigital number, since it uses as much as digits as its factorization.

136447711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036600.

The product of its digits is 14112, while the sum is 34.

The square root of 136447711 is about 11681.0834685829. The cubic root of 136447711 is about 514.8200093669.

The spelling of 136447711 in words is "one hundred thirty-six million, four hundred forty-seven thousand, seven hundred eleven".