118405053 has 12 divisors (see below), whose sum is σ = 184185820. Its totient is φ = 72864576.

The previous prime is 118405043. The next prime is 118405073. The reversal of 118405053 is 350504811.

118405053 is a `hidden beast` number, since 118 + 40 + 505 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9474084 + 108930969 = 3078^2 + 10437^2 .

It is a de Polignac number, because none of the positive numbers 2^k-118405053 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118405033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 505888 + ... + 506121.

Almost surely, 2^118405053 is an apocalyptic number.

118405053 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

118405053 is a deficient number, since it is larger than the sum of its proper divisors (65780767).

118405053 is a wasteful number, since it uses less digits than its factorization.

118405053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012028 (or 1012025 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 118405053 is about 10881.4085944789. The cubic root of 118405053 is about 491.0473958144.

Adding to 118405053 its reverse (350504811), we get a palindrome (468909864).

The spelling of 118405053 in words is "one hundred eighteen million, four hundred five thousand, fifty-three".