118947653 has 4 divisors (see below), whose sum is σ = 129761088. Its totient is φ = 108134220.

The previous prime is 118947641. The next prime is 118947677. The reversal of 118947653 is 356749811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 118947653 - 2¹⁰ = 118946629 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 (118943653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5406701 + ... + 5406722.

It is an arithmetic number, because the mean of its divisors is an integer number (32440272).

Almost surely, 2^118947653 is an apocalyptic number.

It is an amenable number.

118947653 is a deficient number, since it is larger than the sum of its proper divisors (10813435).

118947653 is a wasteful number, since it uses less digits than its factorization.

118947653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10813434.

The product of its digits is 181440, while the sum is 44.

The square root of 118947653 is about 10906.3125299067. The cubic root of 118947653 is about 491.7963400696.

The spelling of 118947653 in words is "one hundred eighteen million, nine hundred forty-seven thousand, six hundred fifty-three".