118145109547 has 2 divisors, whose sum is σ = 118145109548. Its totient is φ = 118145109546.

The previous prime is 118145109529. The next prime is 118145109569. The reversal of 118145109547 is 745901541811.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 118145109547 - 2¹⁹ = 118144585259 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 118145109497 and 118145109506.

It is not a weakly prime, because it can be changed into another prime (118145109647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59072554773 + 59072554774.

It is an arithmetic number, because the mean of its divisors is an integer number (59072554774).

Almost surely, 2^118145109547 is an apocalyptic number.

118145109547 is a deficient number, since it is larger than the sum of its proper divisors (1).

118145109547 is an equidigital number, since it uses as much as digits as its factorization.

118145109547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 201600, while the sum is 46.

The spelling of 118145109547 in words is "one hundred eighteen billion, one hundred forty-five million, one hundred nine thousand, five hundred forty-seven".