118420045 has 16 divisors (see below), whose sum is σ = 151806960. Its totient is φ = 88367104.

The previous prime is 118420039. The next prime is 118420061. The reversal of 118420045 is 540024811.

It can be written as a sum of positive squares in 8 ways, for example, as 40309801 + 78110244 = 6349^2 + 8838^2 .

It is a cyclic number.

It is not a de Polignac number, because 118420045 - 2¹¹ = 118417997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3441 + ... + 15769.

It is an arithmetic number, because the mean of its divisors is an integer number (9487935).

Almost surely, 2^118420045 is an apocalyptic number.

It is an amenable number.

118420045 is a deficient number, since it is larger than the sum of its proper divisors (33386915).

118420045 is a wasteful number, since it uses less digits than its factorization.

118420045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12464.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 118420045 is about 10882.0974540757. The cubic root of 118420045 is about 491.0681197945.

Adding to 118420045 its reverse (540024811), we get a palindrome (658444856).

The spelling of 118420045 in words is "one hundred eighteen million, four hundred twenty thousand, forty-five".