118120553 has 4 divisors (see below), whose sum is σ = 118181700. Its totient is φ = 118059408.

The previous prime is 118120529. The next prime is 118120579. The reversal of 118120553 is 355021811.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 355021811 = 67 ⋅5298833.

It can be written as a sum of positive squares in 2 ways, for example, as 63552784 + 54567769 = 7972^2 + 7387^2 .

It is a cyclic number.

It is not a de Polignac number, because 118120553 - 2¹² = 118116457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118120153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27578 + ... + 31571.

It is an arithmetic number, because the mean of its divisors is an integer number (29545425).

Almost surely, 2^118120553 is an apocalyptic number.

It is an amenable number.

118120553 is a deficient number, since it is larger than the sum of its proper divisors (61147).

118120553 is an equidigital number, since it uses as much as digits as its factorization.

118120553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61146.

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 118120553 is about 10868.3279762804. The cubic root of 118120553 is about 490.6537892312.

The spelling of 118120553 in words is "one hundred eighteen million, one hundred twenty thousand, five hundred fifty-three".